123011311131030 has 64 divisors (see below), whose sum is σ = 341193492241920. Its totient is φ = 27800951211264.

The previous prime is 123011311131013. The next prime is 123011311131041. The reversal of 123011311131030 is 30131113110321.

123011311131030 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 123011311130988 and 123011311131006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3290813604 + ... + 3290850983.

It is an arithmetic number, because the mean of its divisors is an integer number (5331148316280).

Almost surely, 2^{123011311131030} is an apocalyptic number.

123011311131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123011311131030 is an abundant number, since it is smaller than the sum of its proper divisors (218182181110890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123011311131030 is a wasteful number, since it uses less digits than its factorization.

123011311131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581664693.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 123011311131030 its reverse (30131113110321), we get a palindrome (153142424241351).

The spelling of 123011311131030 in words is "one hundred twenty-three trillion, eleven billion, three hundred eleven million, one hundred thirty-one thousand, thirty".