455155123213 has 4 divisors (see below), whose sum is σ = 520177283680. Its totient is φ = 390132962748.

The previous prime is 455155123211. The next prime is 455155123231. The reversal of 455155123213 is 312321551554.

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 a cyclic number.

It is not a de Polignac number, because 455155123213 - 2¹ = 455155123211 is a prime.

It is a super-2 number, since 2×455155123213² (a number of 24 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 (455155123211) 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, 32511080223 + ... + 32511080236.

It is an arithmetic number, because the mean of its divisors is an integer number (130044320920).

Almost surely, 2^455155123213 is an apocalyptic number.

It is an amenable number.

455155123213 is a deficient number, since it is larger than the sum of its proper divisors (65022160467).

455155123213 is an equidigital number, since it uses as much as digits as its factorization.

455155123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65022160466.

The product of its digits is 90000, while the sum is 37.

Adding to 455155123213 its reverse (312321551554), we get a palindrome (767476674767).

The spelling of 455155123213 in words is "four hundred fifty-five billion, one hundred fifty-five million, one hundred twenty-three thousand, two hundred thirteen".