23403520155454 has 8 divisors (see below), whose sum is σ = 35105326213320. Its totient is φ = 11701744751016.

The previous prime is 23403520155377. The next prime is 23403520155469. The reversal of 23403520155454 is 45455102530432.

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

It is a super-2 number, since 2×23403520155454² (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 23403520155454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5648709 + ... + 8872144.

It is an arithmetic number, because the mean of its divisors is an integer number (4388165776665).

Almost surely, 2^{23403520155454} is an apocalyptic number.

23403520155454 is a deficient number, since it is larger than the sum of its proper divisors (11701806057866).

23403520155454 is a wasteful number, since it uses less digits than its factorization.

23403520155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15326714.

The product of its (nonzero) digits is 1440000, while the sum is 43.

Adding to 23403520155454 its reverse (45455102530432), we get a palindrome (68858622685886).

The spelling of 23403520155454 in words is "twenty-three trillion, four hundred three billion, five hundred twenty million, one hundred fifty-five thousand, four hundred fifty-four".