23401453553443 has 16 divisors (see below), whose sum is σ = 28318574260224. Its totient is φ = 18877917571200.

The previous prime is 23401453553437. The next prime is 23401453553459. The reversal of 23401453553443 is 34435535410432.

It is a cyclic number.

It is not a de Polignac number, because 23401453553443 - 2¹³ = 23401453545251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23401453553393 and 23401453553402.

It is not an unprimeable number, because it can be changed into a prime (23401453523443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061118 + ... + 6923068.

It is an arithmetic number, because the mean of its divisors is an integer number (1769910891264).

Almost surely, 2^{23401453553443} is an apocalyptic number.

23401453553443 is a deficient number, since it is larger than the sum of its proper divisors (4917120706781).

23401453553443 is a wasteful number, since it uses less digits than its factorization.

23401453553443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895522.

The product of its (nonzero) digits is 5184000, while the sum is 46.

Adding to 23401453553443 its reverse (34435535410432), we get a palindrome (57836988963875).

The spelling of 23401453553443 in words is "twenty-three trillion, four hundred one billion, four hundred fifty-three million, five hundred fifty-three thousand, four hundred forty-three".