20311141313 has 8 divisors (see below), whose sum is σ = 20376824832. Its totient is φ = 20245490496.

The previous prime is 20311141283. The next prime is 20311141337. The reversal of 20311141313 is 31314111302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20311141313 is a prime.

It is a super-2 number, since 2×20311141313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20311141393) 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, 2032856 + ... + 2042822.

It is an arithmetic number, because the mean of its divisors is an integer number (2547103104).

Almost surely, 2^20311141313 is an apocalyptic number.

It is an amenable number.

20311141313 is a deficient number, since it is larger than the sum of its proper divisors (65683519).

20311141313 is an equidigital number, since it uses as much as digits as its factorization.

20311141313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16351.

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

Adding to 20311141313 its reverse (31314111302), we get a palindrome (51625252615).

The spelling of 20311141313 in words is "twenty billion, three hundred eleven million, one hundred forty-one thousand, three hundred thirteen".