1231264370 has 16 divisors (see below), whose sum is σ = 2532886848. Its totient is φ = 422147760.

The previous prime is 1231264361. The next prime is 1231264387. The reversal of 1231264370 is 734621321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8794676 + ... + 8794815.

It is an arithmetic number, because the mean of its divisors is an integer number (158305428).

Almost surely, 2^1231264370 is an apocalyptic number.

1231264370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231264370 is an abundant number, since it is smaller than the sum of its proper divisors (1301622478).

1231264370 is a wasteful number, since it uses less digits than its factorization.

1231264370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17589505.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1231264370 is about 35089.3768824697. The cubic root of 1231264370 is about 1071.8082708504.

Adding to 1231264370 its reverse (734621321), we get a palindrome (1965885691).

The spelling of 1231264370 in words is "one billion, two hundred thirty-one million, two hundred sixty-four thousand, three hundred seventy".