1213045252000 has 96 divisors (see below), whose sum is σ = 3076596117504. Its totient is φ = 469565856000.

The previous prime is 1213045251991. The next prime is 1213045252021. The reversal of 1213045252000 is 2525403121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4767312 + ... + 5015311.

It is an arithmetic number, because the mean of its divisors is an integer number (32047876224).

Almost surely, 2^{1213045252000} is an apocalyptic number.

1213045252000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213045252000 is an abundant number, since it is smaller than the sum of its proper divisors (1863550865504).

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

1213045252000 is an equidigital number, since it uses as much as digits as its factorization.

1213045252000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782679 (or 9782661 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 1213045252000 in words is "one trillion, two hundred thirteen billion, forty-five million, two hundred fifty-two thousand".