211302313113131 has 4 divisors (see below), whose sum is σ = 213394415223264. Its totient is φ = 209210211003000.

The previous prime is 211302313113113. The next prime is 211302313113169. The reversal of 211302313113131 is 131311313203112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211302313113131 is a prime.

It is a super-2 number, since 2×211302313113131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211302313113131.

It is not an unprimeable number, because it can be changed into a prime (211302313113181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046051054915 + ... + 1046051055116.

It is an arithmetic number, because the mean of its divisors is an integer number (53348603805816).

Almost surely, 2^{211302313113131} is an apocalyptic number.

211302313113131 is a deficient number, since it is larger than the sum of its proper divisors (2092102110133).

211302313113131 is a wasteful number, since it uses less digits than its factorization.

211302313113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092102110132.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 211302313113131 its reverse (131311313203112), we get a palindrome (342613626316243).

The spelling of 211302313113131 in words is "two hundred eleven trillion, three hundred two billion, three hundred thirteen million, one hundred thirteen thousand, one hundred thirty-one".