31143000022501 has 2 divisors, whose sum is σ = 31143000022502. Its totient is φ = 31143000022500.

The previous prime is 31143000022429. The next prime is 31143000022559. The reversal of 31143000022501 is 10522000034113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15612977158276 + 15530022864225 = 3951326^2 + 3940815^2 .

It is a cyclic number.

It is not a de Polignac number, because 31143000022501 - 2¹¹ = 31143000020453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31143000022601) 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 as a sum of consecutive naturals, namely, 15571500011250 + 15571500011251.

It is an arithmetic number, because the mean of its divisors is an integer number (15571500011251).

Almost surely, 2^{31143000022501} is an apocalyptic number.

It is an amenable number.

31143000022501 is a deficient number, since it is larger than the sum of its proper divisors (1).

31143000022501 is an equidigital number, since it uses as much as digits as its factorization.

31143000022501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 31143000022501 its reverse (10522000034113), we get a palindrome (41665000056614).

The spelling of 31143000022501 in words is "thirty-one trillion, one hundred forty-three billion, twenty-two thousand, five hundred one".