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120230220031 = 412932444391
BaseRepresentation
bin110111111111001000…
…1111001000011111111
3102111100001101000000021
41233332101321003333
53432212414020111
6131122154513011
711454263002555
oct1577621710377
9374301330007
10120230220031
1146a97908909
121b374a35767
13b450ac283c
145b67b53bd5
1531da2cdd71
hex1bfe4790ff

120230220031 has 4 divisors (see below), whose sum is σ = 123162664464. Its totient is φ = 117297775600.

The previous prime is 120230220029. The next prime is 120230220041. The reversal of 120230220031 is 130022032021.

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 120230220031 - 21 = 120230220029 is a prime.

It is a super-2 number, since 2×1202302200312 (a number of 23 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 = 120230219987 and 120230220014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120230220041) 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, 1466222155 + ... + 1466222236.

It is an arithmetic number, because the mean of its divisors is an integer number (30790666116).

Almost surely, 2120230220031 is an apocalyptic number.

120230220031 is a deficient number, since it is larger than the sum of its proper divisors (2932444433).

120230220031 is an equidigital number, since it uses as much as digits as its factorization.

120230220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932444432.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 120230220031 its reverse (130022032021), we get a palindrome (250252252052).

The spelling of 120230220031 in words is "one hundred twenty billion, two hundred thirty million, two hundred twenty thousand, thirty-one".

Divisors: 1 41 2932444391 120230220031