31150421201201 has 4 divisors (see below), whose sum is σ = 31910187572004. Its totient is φ = 30390654830400.

The previous prime is 31150421201183. The next prime is 31150421201213. The reversal of 31150421201201 is 10210212405113.

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 663900669601 + 30486520531600 = 814801^2 + 5521460^2 .

It is a cyclic number.

It is not a de Polignac number, because 31150421201201 - 2¹⁰ = 31150421200177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31150421201261) 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, 379883185340 + ... + 379883185421.

It is an arithmetic number, because the mean of its divisors is an integer number (7977546893001).

Almost surely, 2^{31150421201201} is an apocalyptic number.

It is an amenable number.

31150421201201 is a deficient number, since it is larger than the sum of its proper divisors (759766370803).

31150421201201 is an equidigital number, since it uses as much as digits as its factorization.

31150421201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759766370802.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 31150421201201 its reverse (10210212405113), we get a palindrome (41360633606314).

The spelling of 31150421201201 in words is "thirty-one trillion, one hundred fifty billion, four hundred twenty-one million, two hundred one thousand, two hundred one".