311002141210061 has 4 divisors (see below), whose sum is σ = 355431018525792. Its totient is φ = 266573263894332.

The previous prime is 311002141209973. The next prime is 311002141210067. The reversal of 311002141210061 is 160012141200113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311002141210061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311002141210067) 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, 22214438657855 + ... + 22214438657868.

It is an arithmetic number, because the mean of its divisors is an integer number (88857754631448).

Almost surely, 2^{311002141210061} is an apocalyptic number.

It is an amenable number.

311002141210061 is a deficient number, since it is larger than the sum of its proper divisors (44428877315731).

311002141210061 is an equidigital number, since it uses as much as digits as its factorization.

311002141210061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44428877315730.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 311002141210061 its reverse (160012141200113), we get a palindrome (471014282410174).

The spelling of 311002141210061 in words is "three hundred eleven trillion, two billion, one hundred forty-one million, two hundred ten thousand, sixty-one".