213020123232 has 48 divisors (see below), whose sum is σ = 639060371712. Its totient is φ = 60862892160.

The previous prime is 213020123219. The next prime is 213020123257. The reversal of 213020123232 is 232321020312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×213020123232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 213020123199 and 213020123208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158496444 + ... + 158497787.

It is an arithmetic number, because the mean of its divisors is an integer number (13313757744).

Almost surely, 2^213020123232 is an apocalyptic number.

It is an amenable number.

213020123232 is an abundant number, since it is smaller than the sum of its proper divisors (426040248480).

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

213020123232 is a wasteful number, since it uses less digits than its factorization.

213020123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316994251 (or 316994243 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213020123232 its reverse (232321020312), we get a palindrome (445341143544).

The spelling of 213020123232 in words is "two hundred thirteen billion, twenty million, one hundred twenty-three thousand, two hundred thirty-two".