123011020032 has 36 divisors (see below), whose sum is σ = 327388706400. Its totient is φ = 41003673088.

The previous prime is 123011020003. The next prime is 123011020049. The reversal of 123011020032 is 230020110321.

It is a super-2 number, since 2×123011020032² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123011019993 and 123011020020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80084532 + ... + 80086067.

Almost surely, 2^123011020032 is an apocalyptic number.

123011020032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123011020032 is an abundant number, since it is smaller than the sum of its proper divisors (204377686368).

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

123011020032 is an equidigital number, since it uses as much as digits as its factorization.

123011020032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160170618 (or 160170604 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123011020032 its reverse (230020110321), we get a palindrome (353031130353).

The spelling of 123011020032 in words is "one hundred twenty-three billion, eleven million, twenty thousand, thirty-two".