1312151043 has 32 divisors (see below), whose sum is σ = 2066890752. Its totient is φ = 724586400.

The previous prime is 1312151041. The next prime is 1312151089. The reversal of 1312151043 is 3401512131.

It is not a de Polignac number, because 1312151043 - 2¹ = 1312151041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1312151041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834448 + ... + 836018.

It is an arithmetic number, because the mean of its divisors is an integer number (64590336).

Almost surely, 2^1312151043 is an apocalyptic number.

1312151043 is a deficient number, since it is larger than the sum of its proper divisors (754739709).

1312151043 is a wasteful number, since it uses less digits than its factorization.

1312151043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1312151043 is about 36223.6254811691. The cubic root of 1312151043 is about 1094.7827437452.

Adding to 1312151043 its reverse (3401512131), we get a palindrome (4713663174).

The spelling of 1312151043 in words is "one billion, three hundred twelve million, one hundred fifty-one thousand, forty-three".