3131201123252 has 12 divisors (see below), whose sum is σ = 5479619544000. Its totient is φ = 1565595539256.

The previous prime is 3131201123201. The next prime is 3131201123287. The reversal of 3131201123252 is 2523211021313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385499 + ... + 2531997.

It is an arithmetic number, because the mean of its divisors is an integer number (456634962000).

Almost surely, 2^{3131201123252} is an apocalyptic number.

It is an amenable number.

3131201123252 is a deficient number, since it is larger than the sum of its proper divisors (2348418420748).

3131201123252 is a wasteful number, since it uses less digits than its factorization.

3131201123252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511190 (or 2511188 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 3131201123252 its reverse (2523211021313), we get a palindrome (5654412144565).

The spelling of 3131201123252 in words is "three trillion, one hundred thirty-one billion, two hundred one million, one hundred twenty-three thousand, two hundred fifty-two".