213113020123020 has 48 divisors (see below), whose sum is σ = 598274462822400. Its totient is φ = 56681757130176.

The previous prime is 213113020122851. The next prime is 213113020123027. The reversal of 213113020123020 is 20321020311312.

It is not an unprimeable number, because it can be changed into a prime (213113020123027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4636900870 + ... + 4636946829.

It is an arithmetic number, because the mean of its divisors is an integer number (12464051308800).

Almost surely, 2^{213113020123020} is an apocalyptic number.

213113020123020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213113020123020 is an abundant number, since it is smaller than the sum of its proper divisors (385161442699380).

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

213113020123020 is a wasteful number, since it uses less digits than its factorization.

213113020123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273848094 (or 9273848092 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213113020123020 its reverse (20321020311312), we get a palindrome (233434040434332).

The spelling of 213113020123020 in words is "two hundred thirteen trillion, one hundred thirteen billion, twenty million, one hundred twenty-three thousand, twenty".