20111313131201 has 4 divisors (see below), whose sum is σ = 20167333502400. Its totient is φ = 20055292760004.

The previous prime is 20111313131197. The next prime is 20111313131237. The reversal of 20111313131201 is 10213131311102.

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 not a de Polignac number, because 20111313131201 - 2² = 20111313131197 is a prime.

It is a super-2 number, since 2×20111313131201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111313130201) 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, 28010185061 + ... + 28010185778.

It is an arithmetic number, because the mean of its divisors is an integer number (5041833375600).

Almost surely, 2^{20111313131201} is an apocalyptic number.

It is an amenable number.

20111313131201 is a deficient number, since it is larger than the sum of its proper divisors (56020371199).

20111313131201 is an equidigital number, since it uses as much as digits as its factorization.

20111313131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56020371198.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 20111313131201 its reverse (10213131311102), we get a palindrome (30324444442303).

The spelling of 20111313131201 in words is "twenty trillion, one hundred eleven billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred one".