23401421045542 has 16 divisors (see below), whose sum is σ = 35525770705152. Its totient is φ = 11559503206600.

The previous prime is 23401421045521. The next prime is 23401421045543. The reversal of 23401421045542 is 24554012410432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401421045543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6907167 + ... + 9721717.

It is an arithmetic number, because the mean of its divisors is an integer number (2220360669072).

Almost surely, 2^{23401421045542} is an apocalyptic number.

23401421045542 is a deficient number, since it is larger than the sum of its proper divisors (12124349659610).

23401421045542 is a wasteful number, since it uses less digits than its factorization.

23401421045542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864723.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 23401421045542 its reverse (24554012410432), we get a palindrome (47955433455974).

The spelling of 23401421045542 in words is "twenty-three trillion, four hundred one billion, four hundred twenty-one million, forty-five thousand, five hundred forty-two".