1125102045900 has 72 divisors (see below), whose sum is σ = 3720337438720. Its totient is φ = 257166181440.

The previous prime is 1125102045887. The next prime is 1125102045901. The reversal of 1125102045900 is 95402015211.

It is a super-2 number, since 2×1125102045900² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1125102045901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267879340 + ... + 267883539.

Almost surely, 2^{1125102045900} is an apocalyptic number.

1125102045900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125102045900 is an abundant number, since it is smaller than the sum of its proper divisors (2595235392820).

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

1125102045900 is a wasteful number, since it uses less digits than its factorization.

1125102045900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535762903 (or 535762896 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 1125102045900 in words is "one trillion, one hundred twenty-five billion, one hundred two million, forty-five thousand, nine hundred".