1013121233100 has 108 divisors (see below), whose sum is σ = 3278010124480. Its totient is φ = 261450633600.

The previous prime is 1013121233029. The next prime is 1013121233123. The reversal of 1013121233100 is 13321213101.

1013121233100 is a `hidden beast` number, since 10 + 1 + 312 + 12 + 331 + 0 + 0 = 666.

It is a super-2 number, since 2×1013121233100² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18128395 + ... + 18184194.

Almost surely, 2^{1013121233100} is an apocalyptic number.

1013121233100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013121233100 is an abundant number, since it is smaller than the sum of its proper divisors (2264888891380).

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

1013121233100 is a wasteful number, since it uses less digits than its factorization.

1013121233100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36312640 (or 36312630 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1013121233100 its reverse (13321213101), we get a palindrome (1026442446201).

The spelling of 1013121233100 in words is "one trillion, thirteen billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred".