134431432320 has 64 divisors (see below), whose sum is σ = 428500196640. Its totient is φ = 35848381440.

The previous prime is 134431432319. The next prime is 134431432349. The reversal of 134431432320 is 23234134431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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

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, 35006266 + ... + 35010105.

Almost surely, 2^134431432320 is an apocalyptic number.

134431432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134431432320 is an abundant number, since it is smaller than the sum of its proper divisors (294068764320).

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

134431432320 is an equidigital number, since it uses as much as digits as its factorization.

134431432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70016393 (or 70016381 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 134431432320 its reverse (23234134431), we get a palindrome (157665566751).

The spelling of 134431432320 in words is "one hundred thirty-four billion, four hundred thirty-one million, four hundred thirty-two thousand, three hundred twenty".