123021314432 has 32 divisors (see below), whose sum is σ = 245953773000. Its totient is φ = 61291740160.

The previous prime is 123021314431. The next prime is 123021314461. The reversal of 123021314432 is 234413120321.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×123021314432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021314431) by changing a digit.

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, 1674182 + ... + 1746117.

Almost surely, 2^123021314432 is an apocalyptic number.

It is an amenable number.

123021314432 is a deficient number, since it is larger than the sum of its proper divisors (122932458568).

123021314432 is an equidigital number, since it uses as much as digits as its factorization.

123021314432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420594 (or 3420582 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123021314432 its reverse (234413120321), we get a palindrome (357434434753).

The spelling of 123021314432 in words is "one hundred twenty-three billion, twenty-one million, three hundred fourteen thousand, four hundred thirty-two".