31143001051 has 2 divisors, whose sum is σ = 31143001052. Its totient is φ = 31143001050.

The previous prime is 31143001049. The next prime is 31143001147. The reversal of 31143001051 is 15010034113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31143001051 - 2¹ = 31143001049 is a prime.

Together with 31143001049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31143001151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571500525 + 15571500526.

It is an arithmetic number, because the mean of its divisors is an integer number (15571500526).

Almost surely, 2^31143001051 is an apocalyptic number.

31143001051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31143001051 is an equidigital number, since it uses as much as digits as its factorization.

31143001051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 31143001051 its reverse (15010034113), we get a palindrome (46153035164).

The spelling of 31143001051 in words is "thirty-one billion, one hundred forty-three million, one thousand, fifty-one".