11331330015231 has 12 divisors (see below), whose sum is σ = 16973679529352. Its totient is φ = 7554220009992.

The previous prime is 11331330015209. The next prime is 11331330015241. The reversal of 11331330015231 is 13251003313311.

It is a happy number.

11331330015231 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 133 + 0 + 0 + 1 + 523 + 1 = 666.

It is not a de Polignac number, because 11331330015231 - 2¹⁵ = 11331329982463 is a prime.

It is a super-2 number, since 2×11331330015231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331330015195 and 11331330015204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331330015241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23315493616 + ... + 23315494101.

Almost surely, 2^{11331330015231} is an apocalyptic number.

11331330015231 is a deficient number, since it is larger than the sum of its proper divisors (5642349514121).

11331330015231 is an frugal number, since it uses more digits than its factorization.

11331330015231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46630987732 (or 46630987720 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

Adding to 11331330015231 its reverse (13251003313311), we get a palindrome (24582333328542).

The spelling of 11331330015231 in words is "eleven trillion, three hundred thirty-one billion, three hundred thirty million, fifteen thousand, two hundred thirty-one".