23153221231633 has 4 divisors (see below), whose sum is σ = 23156591921460. Its totient is φ = 23149850541808.

The previous prime is 23153221231627. The next prime is 23153221231639. The reversal of 23153221231633 is 33613212235132.

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

It is an interprime number because it is at equal distance from previous prime (23153221231627) and next prime (23153221231639).

It can be written as a sum of positive squares in 2 ways, for example, as 133453587969 + 23019767643664 = 365313^2 + 4797892^2 .

It is a cyclic number.

It is not a de Polignac number, because 23153221231633 - 2⁹ = 23153221231121 is a prime.

It is a super-2 number, since 2×23153221231633² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23153221231592 and 23153221231601.

It is not an unprimeable number, because it can be changed into a prime (23153221231639) 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, 1685334610 + ... + 1685348347.

It is an arithmetic number, because the mean of its divisors is an integer number (5789147980365).

Almost surely, 2^{23153221231633} is an apocalyptic number.

It is an amenable number.

23153221231633 is a deficient number, since it is larger than the sum of its proper divisors (3370689827).

23153221231633 is an equidigital number, since it uses as much as digits as its factorization.

23153221231633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370689826.

The product of its digits is 116640, while the sum is 37.

Adding to 23153221231633 its reverse (33613212235132), we get a palindrome (56766433466765).

The spelling of 23153221231633 in words is "twenty-three trillion, one hundred fifty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, six hundred thirty-three".