1231151350 has 96 divisors (see below), whose sum is σ = 2703264480. Its totient is φ = 411264000.

The previous prime is 1231151333. The next prime is 1231151401. The reversal of 1231151350 is 531511321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2924140 + ... + 2924560.

It is an arithmetic number, because the mean of its divisors is an integer number (28159005).

Almost surely, 2^1231151350 is an apocalyptic number.

1231151350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231151350 is an abundant number, since it is smaller than the sum of its proper divisors (1472113130).

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

1231151350 is a wasteful number, since it uses less digits than its factorization.

1231151350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1231151350 is about 35087.7663865912. The cubic root of 1231151350 is about 1071.7754754355.

Adding to 1231151350 its reverse (531511321), we get a palindrome (1762662671).

The spelling of 1231151350 in words is "one billion, two hundred thirty-one million, one hundred fifty-one thousand, three hundred fifty".