123031031311031 has 8 divisors (see below), whose sum is σ = 124245163332864. Its totient is φ = 121818090202360.

The previous prime is 123031031311021. The next prime is 123031031311081. The reversal of 123031031311031 is 130113130130321.

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

It is a cyclic number.

It is not a de Polignac number, because 123031031311031 - 2³⁴ = 123013851441847 is a prime.

It is a super-2 number, since 2×123031031311031² (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 = 123031031310988 and 123031031311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031031311021) 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, 297520655 + ... + 297933888.

It is an arithmetic number, because the mean of its divisors is an integer number (15530645416608).

Almost surely, 2^{123031031311031} is an apocalyptic number.

123031031311031 is a deficient number, since it is larger than the sum of its proper divisors (1214132021833).

123031031311031 is a wasteful number, since it uses less digits than its factorization.

123031031311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595456581.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 123031031311031 its reverse (130113130130321), we get a palindrome (253144161441352).

The spelling of 123031031311031 in words is "one hundred twenty-three trillion, thirty-one billion, thirty-one million, three hundred eleven thousand, thirty-one".