623215430411 has 4 divisors (see below), whose sum is σ = 712246206192. Its totient is φ = 534184654632.

The previous prime is 623215430401. The next prime is 623215430419. The reversal of 623215430411 is 114034512326.

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

It is a cyclic number.

It is not a de Polignac number, because 623215430411 - 2³⁰ = 622141688587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623215430419) 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, 44515387880 + ... + 44515387893.

It is an arithmetic number, because the mean of its divisors is an integer number (178061551548).

Almost surely, 2^623215430411 is an apocalyptic number.

623215430411 is a deficient number, since it is larger than the sum of its proper divisors (89030775781).

623215430411 is an equidigital number, since it uses as much as digits as its factorization.

623215430411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89030775780.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 623215430411 its reverse (114034512326), we get a palindrome (737249942737).

The spelling of 623215430411 in words is "six hundred twenty-three billion, two hundred fifteen million, four hundred thirty thousand, four hundred eleven".