23403403355 has 16 divisors (see below), whose sum is σ = 28849142784. Its totient is φ = 18212895360.

The previous prime is 23403403343. The next prime is 23403403357. The reversal of 23403403355 is 55330430432.

It is not a de Polignac number, because 23403403355 - 2¹² = 23403399259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23403403357) 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, 1150049 + ... + 1170221.

It is an arithmetic number, because the mean of its divisors is an integer number (1803071424).

Almost surely, 2^23403403355 is an apocalyptic number.

23403403355 is a deficient number, since it is larger than the sum of its proper divisors (5445739429).

23403403355 is a wasteful number, since it uses less digits than its factorization.

23403403355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26486.

The product of its (nonzero) digits is 64800, while the sum is 32.

Adding to 23403403355 its reverse (55330430432), we get a palindrome (78733833787).

The spelling of 23403403355 in words is "twenty-three billion, four hundred three million, four hundred three thousand, three hundred fifty-five".