31143000022001 has 4 divisors (see below), whose sum is σ = 35592000025152. Its totient is φ = 26694000018852.

The previous prime is 31143000021979. The next prime is 31143000022019. The reversal of 31143000022001 is 10022000034113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31143000022001 - 2¹⁸ = 31142999759857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143000022501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224500001565 + ... + 2224500001578.

It is an arithmetic number, because the mean of its divisors is an integer number (8898000006288).

Almost surely, 2^{31143000022001} is an apocalyptic number.

It is an amenable number.

31143000022001 is a deficient number, since it is larger than the sum of its proper divisors (4449000003151).

31143000022001 is an equidigital number, since it uses as much as digits as its factorization.

31143000022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449000003150.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31143000022001 its reverse (10022000034113), we get a palindrome (41165000056114).

The spelling of 31143000022001 in words is "thirty-one trillion, one hundred forty-three billion, twenty-two thousand, one".