143920591031 has 24 divisors (see below), whose sum is σ = 177515797680. Its totient is φ = 116014695552.

The previous prime is 143920591021. The next prime is 143920591039. The reversal of 143920591031 is 130195029341.

It is not a de Polignac number, because 143920591031 - 2¹⁸ = 143920328887 is a prime.

It is a super-2 number, since 2×143920591031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143920591039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436640 + ... + 691733.

It is an arithmetic number, because the mean of its divisors is an integer number (7396491570).

Almost surely, 2^143920591031 is an apocalyptic number.

143920591031 is a deficient number, since it is larger than the sum of its proper divisors (33595206649).

143920591031 is a wasteful number, since it uses less digits than its factorization.

143920591031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128543 (or 1128536 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 143920591031 in words is "one hundred forty-three billion, nine hundred twenty million, five hundred ninety-one thousand, thirty-one".