123012102031 has 8 divisors (see below), whose sum is σ = 151399510304. Its totient is φ = 97328256480.

The previous prime is 123012101999. The next prime is 123012102043. The reversal of 123012102031 is 130201210321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123012102031 - 2⁵ = 123012101999 is a prime.

It is a super-2 number, since 2×123012102031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123012101996 and 123012102014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012102091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675890580 + ... + 675890761.

It is an arithmetic number, because the mean of its divisors is an integer number (18924938788).

Almost surely, 2^123012102031 is an apocalyptic number.

123012102031 is a deficient number, since it is larger than the sum of its proper divisors (28387408273).

123012102031 is a wasteful number, since it uses less digits than its factorization.

123012102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351781361.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123012102031 its reverse (130201210321), we get a palindrome (253213312352).

The spelling of 123012102031 in words is "one hundred twenty-three billion, twelve million, one hundred two thousand, thirty-one".