31032143401 has 6 divisors (see below), whose sum is σ = 36098615850. Its totient is φ = 26598980016.

The previous prime is 31032143399. The next prime is 31032143407. The reversal of 31032143401 is 10434123013.

It can be written as a sum of positive squares in only one way, i.e., 26968208400 + 4063935001 = 164220^2 + 63749^2 .

It is not a de Polignac number, because 31032143401 - 2¹ = 31032143399 is a prime.

It is a super-3 number, since 3×31032143401³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31032143407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316654476 + ... + 316654573.

It is an arithmetic number, because the mean of its divisors is an integer number (6016435975).

Almost surely, 2^31032143401 is an apocalyptic number.

It is an amenable number.

31032143401 is a deficient number, since it is larger than the sum of its proper divisors (5066472449).

31032143401 is an equidigital number, since it uses as much as digits as its factorization.

31032143401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633309063 (or 633309056 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31032143401 its reverse (10434123013), we get a palindrome (41466266414).

The spelling of 31032143401 in words is "thirty-one billion, thirty-two million, one hundred forty-three thousand, four hundred one".