31302223132 has 12 divisors (see below), whose sum is σ = 57661990120. Its totient is φ = 14827368816.

The previous prime is 31302223103. The next prime is 31302223133. The reversal of 31302223132 is 23132220313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302223133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205935603 + ... + 205935754.

Almost surely, 2^31302223132 is an apocalyptic number.

It is an amenable number.

31302223132 is a deficient number, since it is larger than the sum of its proper divisors (26359766988).

31302223132 is a wasteful number, since it uses less digits than its factorization.

31302223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411871380 (or 411871378 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31302223132 its reverse (23132220313), we get a palindrome (54434443445).

The spelling of 31302223132 in words is "thirty-one billion, three hundred two million, two hundred twenty-three thousand, one hundred thirty-two".