20201001213131 has 8 divisors (see below), whose sum is σ = 20690605111440. Its totient is φ = 19716929562528.

The previous prime is 20201001213079. The next prime is 20201001213139. The reversal of 20201001213131 is 13131210010202.

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

It is not a de Polignac number, because 20201001213131 - 2¹⁸ = 20201000950987 is a prime.

It is a super-2 number, since 2×20201001213131² (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 (20201001213139) 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, 1383054536 + ... + 1383069141.

It is an arithmetic number, because the mean of its divisors is an integer number (2586325638930).

Almost surely, 2^{20201001213131} is an apocalyptic number.

20201001213131 is a deficient number, since it is larger than the sum of its proper divisors (489603898309).

20201001213131 is a wasteful number, since it uses less digits than its factorization.

20201001213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766123853.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20201001213131 its reverse (13131210010202), we get a palindrome (33332211223333).

The spelling of 20201001213131 in words is "twenty trillion, two hundred one billion, one million, two hundred thirteen thousand, one hundred thirty-one".