23403145342354 has 32 divisors (see below), whose sum is σ = 36482689267200. Its totient is φ = 11247374611200.

The previous prime is 23403145342337. The next prime is 23403145342391. The reversal of 23403145342354 is 45324354130432.

It is a super-2 number, since 2×23403145342354² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23403145342354.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159661002 + ... + 159807514.

It is an arithmetic number, because the mean of its divisors is an integer number (1140084039600).

Almost surely, 2^{23403145342354} is an apocalyptic number.

23403145342354 is a deficient number, since it is larger than the sum of its proper divisors (13079543924846).

23403145342354 is a wasteful number, since it uses less digits than its factorization.

23403145342354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163986.

The product of its (nonzero) digits is 2073600, while the sum is 43.

Adding to 23403145342354 its reverse (45324354130432), we get a palindrome (68727499472786).

The spelling of 23403145342354 in words is "twenty-three trillion, four hundred three billion, one hundred forty-five million, three hundred forty-two thousand, three hundred fifty-four".