31253007912001 has 4 divisors (see below), whose sum is σ = 31562443634004. Its totient is φ = 30943572190000.

The previous prime is 31253007911999. The next prime is 31253007912107. The reversal of 31253007912001 is 10021970035213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17380727760400 + 13872280151601 = 4169020^2 + 3724551^2 .

It is a cyclic number.

It is not a de Polignac number, because 31253007912001 - 2¹ = 31253007911999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31253007912901) 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, 154717860850 + ... + 154717861051.

It is an arithmetic number, because the mean of its divisors is an integer number (7890610908501).

Almost surely, 2^{31253007912001} is an apocalyptic number.

It is an amenable number.

31253007912001 is a deficient number, since it is larger than the sum of its proper divisors (309435722003).

31253007912001 is a wasteful number, since it uses less digits than its factorization.

31253007912001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309435722002.

The product of its (nonzero) digits is 11340, while the sum is 34.

Adding to 31253007912001 its reverse (10021970035213), we get a palindrome (41274977947214).

The spelling of 31253007912001 in words is "thirty-one trillion, two hundred fifty-three billion, seven million, nine hundred twelve thousand, one".