13121023023198 has 20 divisors (see below), whose sum is σ = 29400810848640. Its totient is φ = 4373674341012.

The previous prime is 13121023023197. The next prime is 13121023023233. The reversal of 13121023023198 is 89132032012131.

It is a happy number.

13121023023198 is a `hidden beast` number, since 1 + 3 + 1 + 210 + 230 + 23 + 198 = 666.

It is a super-2 number, since 2×13121023023198² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121023023193) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40496984478 + ... + 40496984801.

It is an arithmetic number, because the mean of its divisors is an integer number (1470040542432).

Almost surely, 2^{13121023023198} is an apocalyptic number.

13121023023198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13121023023198 is an abundant number, since it is smaller than the sum of its proper divisors (16279787825442).

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

13121023023198 is an equidigital number, since it uses as much as digits as its factorization.

13121023023198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80993969293 (or 80993969284 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 13121023023198 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, twenty-three thousand, one hundred ninety-eight".