31114021433 has 6 divisors (see below), whose sum is σ = 34199709642. Its totient is φ = 28285473920.

The previous prime is 31114021417. The next prime is 31114021457. The reversal of 31114021433 is 33412041113.

It can be written as a sum of positive squares in only one way, i.e., 16600518649 + 14513502784 = 128843^2 + 120472^2 .

It is not a de Polignac number, because 31114021433 - 2⁴ = 31114021417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31114021399 and 31114021408.

It is not an unprimeable number, because it can be changed into a prime (31114021733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128570216 + ... + 128570457.

It is an arithmetic number, because the mean of its divisors is an integer number (5699951607).

Almost surely, 2^31114021433 is an apocalyptic number.

It is an amenable number.

31114021433 is a deficient number, since it is larger than the sum of its proper divisors (3085688209).

31114021433 is a wasteful number, since it uses less digits than its factorization.

31114021433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257140695 (or 257140684 counting only the distinct ones).

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

Adding to 31114021433 its reverse (33412041113), we get a palindrome (64526062546).

The spelling of 31114021433 in words is "thirty-one billion, one hundred fourteen million, twenty-one thousand, four hundred thirty-three".