11150961931 has 8 divisors (see below), whose sum is σ = 11201755328. Its totient is φ = 11100240000.

The previous prime is 11150961911. The next prime is 11150961947. The reversal of 11150961931 is 13916905111.

11150961931 = T₈₆₂₁₉ + T₈₆₂₂₀ + T₈₆₂₂₁.

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

It is a 7-Lehmer number, since φ(11150961931) divides (11150961931-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 11150961931 - 2⁷ = 11150961803 is a prime.

It is a super-2 number, since 2×11150961931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11150961911) 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, 308341 + ... + 342601.

It is an arithmetic number, because the mean of its divisors is an integer number (1400219416).

Almost surely, 2^11150961931 is an apocalyptic number.

11150961931 is the 86221-st centered triangular number.

11150961931 is a deficient number, since it is larger than the sum of its proper divisors (50793397).

11150961931 is a wasteful number, since it uses less digits than its factorization.

11150961931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35733.

The product of its (nonzero) digits is 7290, while the sum is 37.

The spelling of 11150961931 in words is "eleven billion, one hundred fifty million, nine hundred sixty-one thousand, nine hundred thirty-one".