135414123420 has 24 divisors (see below), whose sum is σ = 379159545744. Its totient is φ = 36110432896.

The previous prime is 135414123419. The next prime is 135414123437. The reversal of 135414123420 is 24321414531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128450969 + ... + 1128451088.

It is an arithmetic number, because the mean of its divisors is an integer number (15798314406).

Almost surely, 2^135414123420 is an apocalyptic number.

135414123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135414123420 is an abundant number, since it is smaller than the sum of its proper divisors (243745422324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135414123420 is a wasteful number, since it uses less digits than its factorization.

135414123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256902069 (or 2256902067 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 135414123420 its reverse (24321414531), we get a palindrome (159735537951).

The spelling of 135414123420 in words is "one hundred thirty-five billion, four hundred fourteen million, one hundred twenty-three thousand, four hundred twenty".