971387120252 has 12 divisors (see below), whose sum is σ = 1789397326920. Its totient is φ = 460130741136.

The previous prime is 971387120227. The next prime is 971387120257. The reversal of 971387120252 is 252021783179.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 971387120197 and 971387120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971387120257) 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, 6390704663 + ... + 6390704814.

It is an arithmetic number, because the mean of its divisors is an integer number (149116443910).

Almost surely, 2^971387120252 is an apocalyptic number.

It is an amenable number.

971387120252 is a deficient number, since it is larger than the sum of its proper divisors (818010206668).

971387120252 is a wasteful number, since it uses less digits than its factorization.

971387120252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781409500 (or 12781409498 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 971387120252 in words is "nine hundred seventy-one billion, three hundred eighty-seven million, one hundred twenty thousand, two hundred fifty-two".