31430314121 has 8 divisors (see below), whose sum is σ = 33143950080. Its totient is φ = 29722619088.

The previous prime is 31430314117. The next prime is 31430314127. The reversal of 31430314121 is 12141303413.

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

It is a cyclic number.

It is not a de Polignac number, because 31430314121 - 2² = 31430314117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31430314127) 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, 1474361 + ... + 1495526.

It is an arithmetic number, because the mean of its divisors is an integer number (4142993760).

Almost surely, 2^31430314121 is an apocalyptic number.

It is an amenable number.

31430314121 is a deficient number, since it is larger than the sum of its proper divisors (1713635959).

31430314121 is a wasteful number, since it uses less digits than its factorization.

31430314121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970463.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31430314121 its reverse (12141303413), we get a palindrome (43571617534).

The spelling of 31430314121 in words is "thirty-one billion, four hundred thirty million, three hundred fourteen thousand, one hundred twenty-one".