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1202213031031 = 10837110935963
BaseRepresentation
bin10001011111101001011…
…110110000110001110111
311020221010021220201211201
4101133221132300301313
5124144113013443111
62320142233313331
7152566650104365
oct21375136606167
94227107821751
101202213031031
11423945a07061
12174bb6865847
13894a2c2c71c
144228a3d8635
152141412d6c1
hex117e97b0c77

1202213031031 has 4 divisors (see below), whose sum is σ = 1202323977832. Its totient is φ = 1202102084232.

The previous prime is 1202213031029. The next prime is 1202213031043. The reversal of 1202213031031 is 1301303122021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202213031031 - 21 = 1202213031029 is a prime.

It is a super-2 number, since 2×12022130310312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202213035031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55457145 + ... + 55478818.

It is an arithmetic number, because the mean of its divisors is an integer number (300580994458).

Almost surely, 21202213031031 is an apocalyptic number.

1202213031031 is a deficient number, since it is larger than the sum of its proper divisors (110946801).

1202213031031 is a wasteful number, since it uses less digits than its factorization.

1202213031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110946800.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1202213031031 its reverse (1301303122021), we get a palindrome (2503516153052).

The spelling of 1202213031031 in words is "one trillion, two hundred two billion, two hundred thirteen million, thirty-one thousand, thirty-one".

Divisors: 1 10837 110935963 1202213031031