20423212410 has 32 divisors (see below), whose sum is σ = 49021842240. Its totient is φ = 5445508608.

The previous prime is 20423212379. The next prime is 20423212441. The reversal of 20423212410 is 1421232402.

It is an interprime number because it is at equal distance from previous prime (20423212379) and next prime (20423212441).

It is a Curzon number.

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, 229749 + ... + 305991.

It is an arithmetic number, because the mean of its divisors is an integer number (1531932570).

Almost surely, 2^20423212410 is an apocalyptic number.

20423212410 is an abundant number, since it is smaller than the sum of its proper divisors (28598629830).

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

20423212410 is a wasteful number, since it uses less digits than its factorization.

20423212410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85182.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20423212410 its reverse (1421232402), we get a palindrome (21844444812).

The spelling of 20423212410 in words is "twenty billion, four hundred twenty-three million, two hundred twelve thousand, four hundred ten".