1125420313212 has 72 divisors (see below), whose sum is σ = 3138367268400. Its totient is φ = 337837236480.

The previous prime is 1125420313133. The next prime is 1125420313223. The reversal of 1125420313212 is 2123130245211.

It is a happy number.

1125420313212 is a `hidden beast` number, since 1 + 1 + 25 + 420 + 3 + 1 + 3 + 212 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29306962 + ... + 29345337.

Almost surely, 2^{1125420313212} is an apocalyptic number.

1125420313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1125420313212 is an abundant number, since it is smaller than the sum of its proper divisors (2012946955188).

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

1125420313212 is a wasteful number, since it uses less digits than its factorization.

1125420313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58652363 (or 58652358 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1125420313212 its reverse (2123130245211), we get a palindrome (3248550558423).

The spelling of 1125420313212 in words is "one trillion, one hundred twenty-five billion, four hundred twenty million, three hundred thirteen thousand, two hundred twelve".