2131868711 has 8 divisors (see below), whose sum is σ = 2460545184. Its totient is φ = 1809223200.

The previous prime is 2131868707. The next prime is 2131868741. The reversal of 2131868711 is 1178681312.

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 2131868711 - 2² = 2131868707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131868741) 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, 1506980 + ... + 1508393.

It is an arithmetic number, because the mean of its divisors is an integer number (307568148).

Almost surely, 2^2131868711 is an apocalyptic number.

2131868711 is a deficient number, since it is larger than the sum of its proper divisors (328676473).

2131868711 is a wasteful number, since it uses less digits than its factorization.

2131868711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015481.

The product of its digits is 16128, while the sum is 38.

The square root of 2131868711 is about 46172.1638111103. The cubic root of 2131868711 is about 1287.0245125895.

Multiplying 2131868711 by its sum of digits (38), we get a palindrome (81011011018).

The spelling of 2131868711 in words is "two billion, one hundred thirty-one million, eight hundred sixty-eight thousand, seven hundred eleven".