20201301212131 has 24 divisors (see below), whose sum is σ = 22084994694960. Its totient is φ = 18469008470016.

The previous prime is 20201301212021. The next prime is 20201301212137. The reversal of 20201301212131 is 13121210310202.

It is a de Polignac number, because none of the positive numbers 2^k-20201301212131 is a prime.

It is a super-2 number, since 2×20201301212131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201301212099 and 20201301212108.

It is not an unprimeable number, because it can be changed into a prime (20201301212137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6039855 + ... + 8768263.

It is an arithmetic number, because the mean of its divisors is an integer number (920208112290).

Almost surely, 2^{20201301212131} is an apocalyptic number.

20201301212131 is a deficient number, since it is larger than the sum of its proper divisors (1883693482829).

20201301212131 is a wasteful number, since it uses less digits than its factorization.

20201301212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728855 (or 2728842 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20201301212131 its reverse (13121210310202), we get a palindrome (33322511522333).

The spelling of 20201301212131 in words is "twenty trillion, two hundred one billion, three hundred one million, two hundred twelve thousand, one hundred thirty-one".