120001231312031 has 4 divisors (see below), whose sum is σ = 120003283340064. Its totient is φ = 119999179284000.

The previous prime is 120001231312021. The next prime is 120001231312043. The reversal of 120001231312031 is 130213132100021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120001231312031 is a prime.

It is a super-2 number, since 2×120001231312031² (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 = 120001231311994 and 120001231312012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001231312021) 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, 1025926295 + ... + 1026043256.

It is an arithmetic number, because the mean of its divisors is an integer number (30000820835016).

Almost surely, 2^{120001231312031} is an apocalyptic number.

120001231312031 is a deficient number, since it is larger than the sum of its proper divisors (2052028033).

120001231312031 is an equidigital number, since it uses as much as digits as its factorization.

120001231312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052028032.

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

Adding to 120001231312031 its reverse (130213132100021), we get a palindrome (250214363412052).

The spelling of 120001231312031 in words is "one hundred twenty trillion, one billion, two hundred thirty-one million, three hundred twelve thousand, thirty-one".