135121613024 has 12 divisors (see below), whose sum is σ = 266020675704. Its totient is φ = 67560806496.

The previous prime is 135121613023. The next prime is 135121613027. The reversal of 135121613024 is 420316121531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135121613023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111275172 + ... + 2111275235.

It is an arithmetic number, because the mean of its divisors is an integer number (22168389642).

Almost surely, 2^135121613024 is an apocalyptic number.

It is an amenable number.

135121613024 is a deficient number, since it is larger than the sum of its proper divisors (130899062680).

135121613024 is an equidigital number, since it uses as much as digits as its factorization.

135121613024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222550417 (or 4222550409 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 135121613024 its reverse (420316121531), we get a palindrome (555437734555).

The spelling of 135121613024 in words is "one hundred thirty-five billion, one hundred twenty-one million, six hundred thirteen thousand, twenty-four".