402102243423 has 6 divisors (see below), whose sum is σ = 580814351624. Its totient is φ = 268068162276.

The previous prime is 402102243353. The next prime is 402102243443. The reversal of 402102243423 is 324342201204.

402102243423 is a `hidden beast` number, since 4 + 0 + 2 + 10 + 224 + 3 + 423 = 666.

It is not a de Polignac number, because 402102243423 - 2¹² = 402102239327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402102243443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22339013515 + ... + 22339013532.

Almost surely, 2^402102243423 is an apocalyptic number.

402102243423 is a deficient number, since it is larger than the sum of its proper divisors (178712108201).

402102243423 is a wasteful number, since it uses less digits than its factorization.

402102243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44678027053 (or 44678027050 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 402102243423 its reverse (324342201204), we get a palindrome (726444444627).

The spelling of 402102243423 in words is "four hundred two billion, one hundred two million, two hundred forty-three thousand, four hundred twenty-three".