23305404037 has 4 divisors (see below), whose sum is σ = 24057191296. Its totient is φ = 22553616780.

The previous prime is 23305404029. The next prime is 23305404043. The reversal of 23305404037 is 73040450332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23305404037 - 2³ = 23305404029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 751787227 = 23305404037 / (2 + 3 + 3 + 0 + 5 + 4 + 0 + 4 + 0 + 3 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305414037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375893583 + ... + 375893644.

It is an arithmetic number, because the mean of its divisors is an integer number (6014297824).

Almost surely, 2^23305404037 is an apocalyptic number.

It is an amenable number.

23305404037 is a deficient number, since it is larger than the sum of its proper divisors (751787259).

23305404037 is an equidigital number, since it uses as much as digits as its factorization.

23305404037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751787258.

The product of its (nonzero) digits is 30240, while the sum is 31.

Adding to 23305404037 its reverse (73040450332), we get a palindrome (96345854369).

The spelling of 23305404037 in words is "twenty-three billion, three hundred five million, four hundred four thousand, thirty-seven".