631045011443 has 32 divisors (see below), whose sum is σ = 796338708480. Its totient is φ = 485745384960.

The previous prime is 631045011439. The next prime is 631045011449. The reversal of 631045011443 is 344110540136.

It is a happy number.

It is not a de Polignac number, because 631045011443 - 2² = 631045011439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631045011449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7406855 + ... + 7491567.

It is an arithmetic number, because the mean of its divisors is an integer number (24885584640).

Almost surely, 2^631045011443 is an apocalyptic number.

631045011443 is a deficient number, since it is larger than the sum of its proper divisors (165293697037).

631045011443 is a wasteful number, since it uses less digits than its factorization.

631045011443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85907.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 631045011443 its reverse (344110540136), we get a palindrome (975155551579).

The spelling of 631045011443 in words is "six hundred thirty-one billion, forty-five million, eleven thousand, four hundred forty-three".