31332120031001 has 8 divisors (see below), whose sum is σ = 31357334099784. Its totient is φ = 31306915422720.

The previous prime is 31332120030989. The next prime is 31332120031007. The reversal of 31332120031001 is 10013002123313.

It can be written as a sum of positive squares in 4 ways, for example, as 778587405376 + 30553532625625 = 882376^2 + 5527525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31332120031001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31332120031007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268795 + ... + 8993711.

It is an arithmetic number, because the mean of its divisors is an integer number (3919666762473).

Almost surely, 2^{31332120031001} is an apocalyptic number.

It is an amenable number.

31332120031001 is a deficient number, since it is larger than the sum of its proper divisors (25214068783).

31332120031001 is a wasteful number, since it uses less digits than its factorization.

31332120031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730251.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31332120031001 its reverse (10013002123313), we get a palindrome (41345122154314).

The spelling of 31332120031001 in words is "thirty-one trillion, three hundred thirty-two billion, one hundred twenty million, thirty-one thousand, one".