1131911437653 has 16 divisors (see below), whose sum is σ = 1676924208960. Its totient is φ = 754599356208.

The previous prime is 1131911437633. The next prime is 1131911437661. The reversal of 1131911437653 is 3567341191311.

It is a happy number.

1131911437653 is a `hidden beast` number, since 1 + 131 + 91 + 14 + 376 + 53 = 666.

It is not a de Polignac number, because 1131911437653 - 2¹² = 1131911433557 is a prime.

It is a super-3 number, since 3×1131911437653³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1131911437599 and 1131911437608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131911437633) 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, 3224226 + ... + 3558012.

It is an arithmetic number, because the mean of its divisors is an integer number (104807763060).

Almost surely, 2^{1131911437653} is an apocalyptic number.

It is an amenable number.

1131911437653 is a deficient number, since it is larger than the sum of its proper divisors (545012771307).

1131911437653 is a wasteful number, since it uses less digits than its factorization.

1131911437653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459393 (or 459387 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The spelling of 1131911437653 in words is "one trillion, one hundred thirty-one billion, nine hundred eleven million, four hundred thirty-seven thousand, six hundred fifty-three".