23453331153554 has 4 divisors (see below), whose sum is σ = 35179996730334. Its totient is φ = 11726665576776.

The previous prime is 23453331153529. The next prime is 23453331153607. The reversal of 23453331153554 is 45535113335432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19050405314329 + 4402925839225 = 4364677^2 + 2098315^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23453331153499 and 23453331153508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5863332788387 + ... + 5863332788390.

Almost surely, 2^{23453331153554} is an apocalyptic number.

23453331153554 is a deficient number, since it is larger than the sum of its proper divisors (11726665576780).

23453331153554 is a wasteful number, since it uses less digits than its factorization.

23453331153554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11726665576779.

The product of its digits is 4860000, while the sum is 47.

Adding to 23453331153554 its reverse (45535113335432), we get a palindrome (68988444488986).

The spelling of 23453331153554 in words is "twenty-three trillion, four hundred fifty-three billion, three hundred thirty-one million, one hundred fifty-three thousand, five hundred fifty-four".