633023422113261 has 4 divisors (see below), whose sum is σ = 844031229484352. Its totient is φ = 422015614742172.

The previous prime is 633023422113227. The next prime is 633023422113283. The reversal of 633023422113261 is 162311224320336.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 633023422113261 - 2⁷ = 633023422113133 is a prime.

It is a super-2 number, since 2×633023422113261² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633023422213261) 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, 105503903685541 + ... + 105503903685546.

It is an arithmetic number, because the mean of its divisors is an integer number (211007807371088).

Almost surely, 2^{633023422113261} is an apocalyptic number.

It is an amenable number.

633023422113261 is a deficient number, since it is larger than the sum of its proper divisors (211007807371091).

633023422113261 is a wasteful number, since it uses less digits than its factorization.

633023422113261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211007807371090.

The product of its (nonzero) digits is 186624, while the sum is 39.

Adding to 633023422113261 its reverse (162311224320336), we get a palindrome (795334646433597).

The spelling of 633023422113261 in words is "six hundred thirty-three trillion, twenty-three billion, four hundred twenty-two million, one hundred thirteen thousand, two hundred sixty-one".