1312131101 has 8 divisors (see below), whose sum is σ = 1349049600. Its totient is φ = 1275587728.

The previous prime is 1312131091. The next prime is 1312131103. The reversal of 1312131101 is 1011312131.

It is a happy number.

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 1312131101 - 2¹⁴ = 1312114717 is a prime.

It is a super-2 number, since 2×1312131101² = 3443376052422944402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312131103) 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, 86681 + ... + 100686.

It is an arithmetic number, because the mean of its divisors is an integer number (168631200).

Almost surely, 2^1312131101 is an apocalyptic number.

It is an amenable number.

1312131101 is a deficient number, since it is larger than the sum of its proper divisors (36918499).

1312131101 is a wasteful number, since it uses less digits than its factorization.

1312131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187563.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1312131101 is about 36223.3502177808. The cubic root of 1312131101 is about 1094.7771975676. Note that the first 3 decimals are identical.

Adding to 1312131101 its reverse (1011312131), we get a palindrome (2323443232).

It can be divided in two parts, 1312131 and 101, that multiplied together give a palindrome (132525231).

The spelling of 1312131101 in words is "one billion, three hundred twelve million, one hundred thirty-one thousand, one hundred one".