1311940101 has 16 divisors (see below), whose sum is σ = 1842321600. Its totient is φ = 828142848.

The previous prime is 1311940067. The next prime is 1311940121. The reversal of 1311940101 is 1010491131.

It is not a de Polignac number, because 1311940101 - 2⁶ = 1311940037 is a prime.

It is a super-2 number, since 2×1311940101² = 3442373657223780402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311940121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122365 + ... + 132653.

It is an arithmetic number, because the mean of its divisors is an integer number (115145100).

Almost surely, 2^1311940101 is an apocalyptic number.

It is an amenable number.

1311940101 is a deficient number, since it is larger than the sum of its proper divisors (530381499).

1311940101 is a wasteful number, since it uses less digits than its factorization.

1311940101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12548.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 1311940101 is about 36220.7137008646. The cubic root of 1311940101 is about 1094.7240746769.

The spelling of 1311940101 in words is "one billion, three hundred eleven million, nine hundred forty thousand, one hundred one".