1125660274431 has 32 divisors (see below), whose sum is σ = 1914744403968. Its totient is φ = 571159542240.

The previous prime is 1125660274393. The next prime is 1125660274433. The reversal of 1125660274431 is 1344720665211.

It is not a de Polignac number, because 1125660274431 - 2⁹ = 1125660273919 is a prime.

It is a super-2 number, since 2×1125660274431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125660274433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56652721 + ... + 56672586.

It is an arithmetic number, because the mean of its divisors is an integer number (59835762624).

Almost surely, 2^{1125660274431} is an apocalyptic number.

1125660274431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1125660274431 is a deficient number, since it is larger than the sum of its proper divisors (789084129537).

1125660274431 is a wasteful number, since it uses less digits than its factorization.

1125660274431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113325371.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 1125660274431 in words is "one trillion, one hundred twenty-five billion, six hundred sixty million, two hundred seventy-four thousand, four hundred thirty-one".