1331144131 has 8 divisors (see below), whose sum is σ = 1363371264. Its totient is φ = 1299180480.

The previous prime is 1331144119. The next prime is 1331144147. The reversal of 1331144131 is 1314411331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331144131 - 2⁵ = 1331144099 is a prime.

It is a super-2 number, since 2×1331144131² = 3543889394991490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331144831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55626 + ... + 75871.

It is an arithmetic number, because the mean of its divisors is an integer number (170421408).

Almost surely, 2^1331144131 is an apocalyptic number.

1331144131 is a deficient number, since it is larger than the sum of its proper divisors (32227133).

1331144131 is a wasteful number, since it uses less digits than its factorization.

1331144131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131741.

The product of its digits is 432, while the sum is 22.

The square root of 1331144131 is about 36484.8479646003. The cubic root of 1331144131 is about 1100.0397040765.

Adding to 1331144131 its reverse (1314411331), we get a palindrome (2645555462).

The spelling of 1331144131 in words is "one billion, three hundred thirty-one million, one hundred forty-four thousand, one hundred thirty-one".