1131325434456 has 64 divisors (see below), whose sum is σ = 3422497121280. Its totient is φ = 304221964800.

The previous prime is 1131325434451. The next prime is 1131325434469. The reversal of 1131325434456 is 6544345231311.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131325434451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198058320 + ... + 198064031.

It is an arithmetic number, because the mean of its divisors is an integer number (53476517520).

Almost surely, 2^{1131325434456} is an apocalyptic number.

It is an amenable number.

1131325434456 is an abundant number, since it is smaller than the sum of its proper divisors (2291171686824).

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

1131325434456 is a wasteful number, since it uses less digits than its factorization.

1131325434456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396122384 (or 396122380 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The spelling of 1131325434456 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-five million, four hundred thirty-four thousand, four hundred fifty-six".