31133030132 has 6 divisors (see below), whose sum is σ = 54482802738. Its totient is φ = 15566515064.

The previous prime is 31133030129. The next prime is 31133030147. The reversal of 31133030132 is 23103033113.

It can be written as a sum of positive squares in only one way, i.e., 18172118416 + 12960911716 = 134804^2 + 113846^2 .

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, 3891628763 + ... + 3891628770.

It is an arithmetic number, because the mean of its divisors is an integer number (9080467123).

Almost surely, 2^31133030132 is an apocalyptic number.

It is an amenable number.

31133030132 is a deficient number, since it is larger than the sum of its proper divisors (23349772606).

31133030132 is a wasteful number, since it uses less digits than its factorization.

31133030132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783257537 (or 7783257535 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31133030132 its reverse (23103033113), we get a palindrome (54236063245).

The spelling of 31133030132 in words is "thirty-one billion, one hundred thirty-three million, thirty thousand, one hundred thirty-two".