117031421 has 8 divisors (see below), whose sum is σ = 126249984. Its totient is φ = 107843760.

The previous prime is 117031399. The next prime is 117031433. The reversal of 117031421 is 124130711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117031421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117031393 and 117031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117031471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (15781248).

Almost surely, 2^117031421 is an apocalyptic number.

It is an amenable number.

117031421 is a deficient number, since it is larger than the sum of its proper divisors (9218563).

117031421 is a wasteful number, since it uses less digits than its factorization.

117031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15451.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 117031421 is about 10818.1061651289. The cubic root of 117031421 is about 489.1411040000.

The spelling of 117031421 in words is "one hundred seventeen million, thirty-one thousand, four hundred twenty-one".