213115455436 has 12 divisors (see below), whose sum is σ = 401640666112. Its totient is φ = 98360979408.

The previous prime is 213115455433. The next prime is 213115455467. The reversal of 213115455436 is 634554511312.

It is not an unprimeable number, because it can be changed into a prime (213115455433) 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, 2049187020 + ... + 2049187123.

Almost surely, 2^213115455436 is an apocalyptic number.

213115455436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

213115455436 is a deficient number, since it is larger than the sum of its proper divisors (188525210676).

213115455436 is a wasteful number, since it uses less digits than its factorization.

213115455436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098374160 (or 4098374158 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

Adding to 213115455436 its reverse (634554511312), we get a palindrome (847669966748).

The spelling of 213115455436 in words is "two hundred thirteen billion, one hundred fifteen million, four hundred fifty-five thousand, four hundred thirty-six".