20531012240622 has 32 divisors (see below), whose sum is σ = 46143278350848. Its totient is φ = 6042572163936.

The previous prime is 20531012240581. The next prime is 20531012240707. The reversal of 20531012240622 is 22604221013502.

It is a self number, because there is not a number n which added to its sum of digits gives 20531012240622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5722130938 + ... + 5722134525.

It is an arithmetic number, because the mean of its divisors is an integer number (1441977448464).

Almost surely, 2^{20531012240622} is an apocalyptic number.

20531012240622 is an abundant number, since it is smaller than the sum of its proper divisors (25612266110226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20531012240622 is a wasteful number, since it uses less digits than its factorization.

20531012240622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11444265504.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20531012240622 in words is "twenty trillion, five hundred thirty-one billion, twelve million, two hundred forty thousand, six hundred twenty-two".