1131654561311 has 8 divisors (see below), whose sum is σ = 1134970586400. Its totient is φ = 1128339159552.

The previous prime is 1131654561287. The next prime is 1131654561379.

1131654561311 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131654561311 is a prime.

It is a super-2 number, since 2×1131654561311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131654561811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3613715 + ... + 3914363.

It is an arithmetic number, because the mean of its divisors is an integer number (141871323300).

Almost surely, 2^{1131654561311} is an apocalyptic number.

1131654561311 is a deficient number, since it is larger than the sum of its proper divisors (3316025089).

1131654561311 is a wasteful number, since it uses less digits than its factorization.

1131654561311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311665.

The product of its digits is 32400, while the sum is 38.

The spelling of 1131654561311 in words is "one trillion, one hundred thirty-one billion, six hundred fifty-four million, five hundred sixty-one thousand, three hundred eleven".