136513261203 has 16 divisors (see below), whose sum is σ = 198610175232. Its totient is φ = 82716380000.

The previous prime is 136513261169. The next prime is 136513261207. The reversal of 136513261203 is 302162315631.

It is a cyclic number.

It is not a de Polignac number, because 136513261203 - 2²⁸ = 136244825747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (136513261207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326148 + ... + 615953.

It is an arithmetic number, because the mean of its divisors is an integer number (12413135952).

Almost surely, 2^136513261203 is an apocalyptic number.

136513261203 is a deficient number, since it is larger than the sum of its proper divisors (62096914029).

136513261203 is a wasteful number, since it uses less digits than its factorization.

136513261203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946506.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 136513261203 its reverse (302162315631), we get a palindrome (438675576834).

The spelling of 136513261203 in words is "one hundred thirty-six billion, five hundred thirteen million, two hundred sixty-one thousand, two hundred three".