102400401423 has 16 divisors (see below), whose sum is σ = 136666252800. Its totient is φ = 68200782720.

The previous prime is 102400401421. The next prime is 102400401443. The reversal of 102400401423 is 324104004201.

It is not a de Polignac number, because 102400401423 - 2¹ = 102400401421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102400401423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102400401421) 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, 25028608 + ... + 25032698.

It is an arithmetic number, because the mean of its divisors is an integer number (8541640800).

Almost surely, 2^102400401423 is an apocalyptic number.

102400401423 is a deficient number, since it is larger than the sum of its proper divisors (34265851377).

102400401423 is a wasteful number, since it uses less digits than its factorization.

102400401423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142.

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

Adding to 102400401423 its reverse (324104004201), we get a palindrome (426504405624).

The spelling of 102400401423 in words is "one hundred two billion, four hundred million, four hundred one thousand, four hundred twenty-three".