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120213021013031 = 1919519833329803
BaseRepresentation
bin11011010101010101000110…
…011010100011010000100111
3120202122020211010101201100202
4123111111012122203100213
5111224032231334404111
61103401033252301115
734215050504004242
oct3325250632432047
9522566733351322
10120213021013031
1135338068462201
121159610961179b
13521006829708b
1421984ac5ca259
15dd703acccb3b
hex6d55466a3427

120213021013031 has 16 divisors (see below), whose sum is σ = 126618140605440. Its totient is φ = 113815725566400.

The previous prime is 120213021013013. The next prime is 120213021013079. The reversal of 120213021013031 is 130310120312021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-120213021013031 is a prime.

It is a super-2 number, since 2×1202130210130312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120213021012994 and 120213021013012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120213021033031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364334576 + ... + 364664378.

It is an arithmetic number, because the mean of its divisors is an integer number (7913633787840).

Almost surely, 2120213021013031 is an apocalyptic number.

120213021013031 is a deficient number, since it is larger than the sum of its proper divisors (6405119592409).

120213021013031 is a wasteful number, since it uses less digits than its factorization.

120213021013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341606.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 120213021013031 its reverse (130310120312021), we get a palindrome (250523141325052).

The spelling of 120213021013031 in words is "one hundred twenty trillion, two hundred thirteen billion, twenty-one million, thirteen thousand, thirty-one".

Divisors: 1 19 1951 9833 37069 186827 329803 6266257 19184183 364499477 643445653 3242952899 12225467407 61616105081 6327001105949 120213021013031