13123111000000 has 98 divisors (see below), whose sum is σ = 32551052559944. Its totient is φ = 5249244000000.

The previous prime is 13123110999967. The next prime is 13123111000033. The reversal of 13123111000000 is 11132131.

It is an interprime number because it is at equal distance from previous prime (13123110999967) and next prime (13123111000033).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5561556 + ... + 7561555.

Almost surely, 2^{13123111000000} is an apocalyptic number.

13123111000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123111000000 is an abundant number, since it is smaller than the sum of its proper divisors (19427941559944).

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

13123111000000 is an frugal number, since it uses more digits than its factorization.

13123111000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123153 (or 13123118 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13123111000000 its reverse (11132131), we get a palindrome (13123122132131).

The spelling of 13123111000000 in words is "thirteen trillion, one hundred twenty-three billion, one hundred eleven million", and thus it is an aban number.