1131231024 has 120 divisors (see below), whose sum is σ = 3947104512. Its totient is φ = 293823360.

The previous prime is 1131230999. The next prime is 1131231053. The reversal of 1131231024 is 4201321311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1131230988 and 1131231006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39924 + ... + 62099.

Almost surely, 2^1131231024 is an apocalyptic number.

1131231024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1131231024 is an abundant number, since it is smaller than the sum of its proper divisors (2815873488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131231024 is a wasteful number, since it uses less digits than its factorization.

1131231024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102055 (or 102046 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1131231024 is about 33633.7780215069. The cubic root of 1131231024 is about 1041.9585332310.

Adding to 1131231024 its reverse (4201321311), we get a palindrome (5332552335).

The spelling of 1131231024 in words is "one billion, one hundred thirty-one million, two hundred thirty-one thousand, twenty-four".