1031231151 has 48 divisors (see below), whose sum is σ = 1613094912. Its totient is φ = 632966400.

The previous prime is 1031231141. The next prime is 1031231167. The reversal of 1031231151 is 1511321301.

It is not a de Polignac number, because 1031231151 - 2⁵ = 1031231119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031231141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1738711 + ... + 1739303.

It is an arithmetic number, because the mean of its divisors is an integer number (33606144).

Almost surely, 2^1031231151 is an apocalyptic number.

1031231151 is a deficient number, since it is larger than the sum of its proper divisors (581863761).

1031231151 is a wasteful number, since it uses less digits than its factorization.

1031231151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1031231151 is about 32112.7879667898. The cubic root of 1031231151 is about 1010.3038496972.

Adding to 1031231151 its reverse (1511321301), we get a palindrome (2542552452).

The spelling of 1031231151 in words is "one billion, thirty-one million, two hundred thirty-one thousand, one hundred fifty-one".