31430200031 has 8 divisors (see below), whose sum is σ = 31730424000. Its totient is φ = 31130192160.

The previous prime is 31430200013. The next prime is 31430200099. The reversal of 31430200031 is 13000203413.

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 not a de Polignac number, because 31430200031 - 2²⁶ = 31363091167 is a prime.

It is a super-2 number, since 2×31430200031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31430199982 and 31430200009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430200001) 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, 246170 + ... + 351368.

It is an arithmetic number, because the mean of its divisors is an integer number (3966303000).

Almost surely, 2^31430200031 is an apocalyptic number.

31430200031 is a deficient number, since it is larger than the sum of its proper divisors (300223969).

31430200031 is a wasteful number, since it uses less digits than its factorization.

31430200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108049.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31430200031 its reverse (13000203413), we get a palindrome (44430403444).

The spelling of 31430200031 in words is "thirty-one billion, four hundred thirty million, two hundred thousand, thirty-one".