3121133332 has 6 divisors (see below), whose sum is σ = 5461983338. Its totient is φ = 1560566664.

The previous prime is 3121133329. The next prime is 3121133341. The reversal of 3121133332 is 2333311213.

It can be written as a sum of positive squares in only one way, i.e., 2716077456 + 405055876 = 52116^2 + 20126^2 .

It is a super-2 number, since 2×3121133332² = 19482946552242844448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390141663 + ... + 390141670.

Almost surely, 2^3121133332 is an apocalyptic number.

It is an amenable number.

3121133332 is a deficient number, since it is larger than the sum of its proper divisors (2340850006).

3121133332 is a wasteful number, since it uses less digits than its factorization.

3121133332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780283337 (or 780283335 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 3121133332 is about 55867.1042027417. The cubic root of 3121133332 is about 1461.4056225885.

Adding to 3121133332 its reverse (2333311213), we get a palindrome (5454444545).

The spelling of 3121133332 in words is "three billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred thirty-two".