23210020210 has 32 divisors (see below), whose sum is σ = 45024018480. Its totient is φ = 8563703808.

The previous prime is 23210020139. The next prime is 23210020231. The reversal of 23210020210 is 1202001232.

It can be written as a sum of positive squares in 8 ways, for example, as 3967614121 + 19242406089 = 62989^2 + 138717^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 119814 + ... + 246526.

Almost surely, 2^23210020210 is an apocalyptic number.

23210020210 is a deficient number, since it is larger than the sum of its proper divisors (21813998270).

23210020210 is a wasteful number, since it uses less digits than its factorization.

23210020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128142.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 23210020210 its reverse (1202001232), we get a palindrome (24412021442).

The spelling of 23210020210 in words is "twenty-three billion, two hundred ten million, twenty thousand, two hundred ten".