31121133322 has 8 divisors (see below), whose sum is σ = 47162954916. Its totient is φ = 15400148352.

The previous prime is 31121133311. The next prime is 31121133377. The reversal of 31121133322 is 22333112113.

It can be written as a sum of positive squares in 2 ways, for example, as 26767904881 + 4353228441 = 163609^2 + 65979^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 31121133293 and 31121133302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80208913 + ... + 80209300.

Almost surely, 2^31121133322 is an apocalyptic number.

31121133322 is a deficient number, since it is larger than the sum of its proper divisors (16041821594).

31121133322 is a wasteful number, since it uses less digits than its factorization.

31121133322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160418312.

The product of its digits is 648, while the sum is 22.

Adding to 31121133322 its reverse (22333112113), we get a palindrome (53454245435).

The spelling of 31121133322 in words is "thirty-one billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred twenty-two".