2131231302011 has 8 divisors (see below), whose sum is σ = 2435842778880. Its totient is φ = 1826657290728.

The previous prime is 2131231302007. The next prime is 2131231302059. The reversal of 2131231302011 is 1102031321312.

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 2131231302011 - 2² = 2131231302007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131231302001) 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, 9244391 + ... + 9472128.

It is an arithmetic number, because the mean of its divisors is an integer number (304480347360).

Almost surely, 2^{2131231302011} is an apocalyptic number.

2131231302011 is a deficient number, since it is larger than the sum of its proper divisors (304611476869).

2131231302011 is a wasteful number, since it uses less digits than its factorization.

2131231302011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18732793.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2131231302011 its reverse (1102031321312), we get a palindrome (3233262623323).

The spelling of 2131231302011 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, three hundred two thousand, eleven".