31322142052 has 6 divisors (see below), whose sum is σ = 54813748598. Its totient is φ = 15661071024.

The previous prime is 31322141999. The next prime is 31322142083. The reversal of 31322142052 is 25024122313.

It can be written as a sum of positive squares in only one way, i.e., 20798254656 + 10523887396 = 144216^2 + 102586^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915267753 + ... + 3915267760.

Almost surely, 2^31322142052 is an apocalyptic number.

It is an amenable number.

31322142052 is a deficient number, since it is larger than the sum of its proper divisors (23491606546).

31322142052 is a wasteful number, since it uses less digits than its factorization.

31322142052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830535517 (or 7830535515 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31322142052 its reverse (25024122313), we get a palindrome (56346264365).

The spelling of 31322142052 in words is "thirty-one billion, three hundred twenty-two million, one hundred forty-two thousand, fifty-two".