23012020435 has 4 divisors (see below), whose sum is σ = 27614424528. Its totient is φ = 18409616344.

The previous prime is 23012020433. The next prime is 23012020441. The reversal of 23012020435 is 53402021032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23012020435 - 2¹ = 23012020433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23012020433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2301202039 + ... + 2301202048.

It is an arithmetic number, because the mean of its divisors is an integer number (6903606132).

Almost surely, 2^23012020435 is an apocalyptic number.

23012020435 is a deficient number, since it is larger than the sum of its proper divisors (4602404093).

23012020435 is an equidigital number, since it uses as much as digits as its factorization.

23012020435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602404092.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 23012020435 its reverse (53402021032), we get a palindrome (76414041467).

The spelling of 23012020435 in words is "twenty-three billion, twelve million, twenty thousand, four hundred thirty-five".