23420212153 has 24 divisors (see below), whose sum is σ = 25779845376. Its totient is φ = 21262550400.

The previous prime is 23420212147. The next prime is 23420212169. The reversal of 23420212153 is 35121202432.

It is not a de Polignac number, because 23420212153 - 2²¹ = 23418115001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23420212133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5481408 + ... + 5485678.

It is an arithmetic number, because the mean of its divisors is an integer number (1074160224).

Almost surely, 2^23420212153 is an apocalyptic number.

It is an amenable number.

23420212153 is a deficient number, since it is larger than the sum of its proper divisors (2359633223).

23420212153 is a wasteful number, since it uses less digits than its factorization.

23420212153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23420212153 its reverse (35121202432), we get a palindrome (58541414585).

The spelling of 23420212153 in words is "twenty-three billion, four hundred twenty million, two hundred twelve thousand, one hundred fifty-three".