23100077465 has 4 divisors (see below), whose sum is σ = 27720092964. Its totient is φ = 18480061968.

The previous prime is 23100077461. The next prime is 23100077477. The reversal of 23100077465 is 56477000132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5920994704 + 17179082761 = 76948^2 + 131069^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100077465 - 2² = 23100077461 is a prime.

It is a super-2 number, since 2×23100077465² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23100077461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310007742 + ... + 2310007751.

It is an arithmetic number, because the mean of its divisors is an integer number (6930023241).

Almost surely, 2^23100077465 is an apocalyptic number.

It is an amenable number.

23100077465 is a deficient number, since it is larger than the sum of its proper divisors (4620015499).

23100077465 is an equidigital number, since it uses as much as digits as its factorization.

23100077465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620015498.

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 23100077465 its reverse (56477000132), we get a palindrome (79577077597).

The spelling of 23100077465 in words is "twenty-three billion, one hundred million, seventy-seven thousand, four hundred sixty-five".