31443124001 has 2 divisors, whose sum is σ = 31443124002. Its totient is φ = 31443124000.

The previous prime is 31443123967. The next prime is 31443124003. The reversal of 31443124001 is 10042134413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16951779601 + 14491344400 = 130199^2 + 120380^2 .

It is a cyclic number.

It is not a de Polignac number, because 31443124001 - 2¹⁴ = 31443107617 is a prime.

Together with 31443124003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31443124003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15721562000 + 15721562001.

It is an arithmetic number, because the mean of its divisors is an integer number (15721562001).

Almost surely, 2^31443124001 is an apocalyptic number.

It is an amenable number.

31443124001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31443124001 is an equidigital number, since it uses as much as digits as its factorization.

31443124001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31443124001 its reverse (10042134413), we get a palindrome (41485258414).

The spelling of 31443124001 in words is "thirty-one billion, four hundred forty-three million, one hundred twenty-four thousand, one".