123020201231032 has 128 divisors (see below), whose sum is σ = 271135763942400. Its totient is φ = 51229348992000.

The previous prime is 123020201230973. The next prime is 123020201231033. The reversal of 123020201231032 is 230132102020321.

It is a junction number, because it is equal to n+sod(n) for n = 123020201230994 and 123020201231012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020201231033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1089090157 + ... + 1089203107.

It is an arithmetic number, because the mean of its divisors is an integer number (2118248155800).

Almost surely, 2^{123020201231032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123020201231032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135567881971200).

123020201231032 is an abundant number, since it is smaller than the sum of its proper divisors (148115562711368).

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

123020201231032 is a wasteful number, since it uses less digits than its factorization.

123020201231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114917 (or 114913 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123020201231032 its reverse (230132102020321), we get a palindrome (353152303251353).

The spelling of 123020201231032 in words is "one hundred twenty-three trillion, twenty billion, two hundred one million, two hundred thirty-one thousand, thirty-two".