31425320001 has 16 divisors (see below), whose sum is σ = 43413709824. Its totient is φ = 20203593984.

The previous prime is 31425319997. The next prime is 31425320033. The reversal of 31425320001 is 10002352413.

It is not a de Polignac number, because 31425320001 - 2² = 31425319997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31425320001.

It is not an unprimeable number, because it can be changed into a prime (31425320081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240161 + ... + 1265246.

It is an arithmetic number, because the mean of its divisors is an integer number (2713356864).

Almost surely, 2^31425320001 is an apocalyptic number.

It is an amenable number.

31425320001 is a deficient number, since it is larger than the sum of its proper divisors (11988389823).

31425320001 is a wasteful number, since it uses less digits than its factorization.

31425320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505560.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 31425320001 its reverse (10002352413), we get a palindrome (41427672414).

The spelling of 31425320001 in words is "thirty-one billion, four hundred twenty-five million, three hundred twenty thousand, one".