213110011020 has 48 divisors (see below), whose sum is σ = 599832188928. Its totient is φ = 56531797440.

The previous prime is 213110011003. The next prime is 213110011069. The reversal of 213110011020 is 20110011312.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 213110010987 and 213110011005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9286534 + ... + 9309453.

It is an arithmetic number, because the mean of its divisors is an integer number (12496503936).

Almost surely, 2^213110011020 is an apocalyptic number.

213110011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213110011020 is an abundant number, since it is smaller than the sum of its proper divisors (386722177908).

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

213110011020 is a wasteful number, since it uses less digits than its factorization.

213110011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18596190 (or 18596188 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 213110011020 its reverse (20110011312), we get a palindrome (233220022332).

The spelling of 213110011020 in words is "two hundred thirteen billion, one hundred ten million, eleven thousand, twenty".