23402040431 has 8 divisors (see below), whose sum is σ = 29176569984. Its totient is φ = 18235356120.

The previous prime is 23402040401. The next prime is 23402040509. The reversal of 23402040431 is 13404020432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23402040431 - 2⁶ = 23402040367 is a prime.

It is a super-2 number, since 2×23402040431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23402040397 and 23402040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23402040401) 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, 151961225 + ... + 151961378.

It is an arithmetic number, because the mean of its divisors is an integer number (3647071248).

Almost surely, 2^23402040431 is an apocalyptic number.

23402040431 is a deficient number, since it is larger than the sum of its proper divisors (5774529553).

23402040431 is a wasteful number, since it uses less digits than its factorization.

23402040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303922621.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23402040431 its reverse (13404020432), we get a palindrome (36806060863).

The spelling of 23402040431 in words is "twenty-three billion, four hundred two million, forty thousand, four hundred thirty-one".