13123021112010 has 24 divisors (see below), whose sum is σ = 34119854891460. Its totient is φ = 3499472296512.

The previous prime is 13123021111973. The next prime is 13123021112041. The reversal of 13123021112010 is 1021112032131.

It can be written as a sum of positive squares in 2 ways, for example, as 12566011150449 + 557009961561 = 3544857^2 + 746331^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72905672755 + ... + 72905672934.

Almost surely, 2^{13123021112010} is an apocalyptic number.

13123021112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123021112010 is an abundant number, since it is smaller than the sum of its proper divisors (20996833779450).

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

13123021112010 is a wasteful number, since it uses less digits than its factorization.

13123021112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145811345702 (or 145811345699 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13123021112010 its reverse (1021112032131), we get a palindrome (14144133144141).

The spelling of 13123021112010 in words is "thirteen trillion, one hundred twenty-three billion, twenty-one million, one hundred twelve thousand, ten".