131002121311 has 8 divisors (see below), whose sum is σ = 137080436864. Its totient is φ = 125039583360.

The previous prime is 131002121309. The next prime is 131002121317. The reversal of 131002121311 is 113121200131.

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 131002121311 - 2¹ = 131002121309 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 (131002121317) 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, 28942086 + ... + 28946611.

It is an arithmetic number, because the mean of its divisors is an integer number (17135054608).

Almost surely, 2^131002121311 is an apocalyptic number.

131002121311 is a deficient number, since it is larger than the sum of its proper divisors (6078315553).

131002121311 is an equidigital number, since it uses as much as digits as its factorization.

131002121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57888801.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131002121311 its reverse (113121200131), we get a palindrome (244123321442).

The spelling of 131002121311 in words is "one hundred thirty-one billion, two million, one hundred twenty-one thousand, three hundred eleven".