931013143442 has 64 divisors (see below), whose sum is σ = 1563877393920. Its totient is φ = 413571895296.

The previous prime is 931013143439. The next prime is 931013143447. The reversal of 931013143442 is 244341310139.

It is not an unprimeable number, because it can be changed into a prime (931013143447) 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 31 ways as a sum of consecutive naturals, for example, 45265853 + ... + 45286415.

It is an arithmetic number, because the mean of its divisors is an integer number (24435584280).

Almost surely, 2^931013143442 is an apocalyptic number.

931013143442 is a deficient number, since it is larger than the sum of its proper divisors (632864250478).

931013143442 is a wasteful number, since it uses less digits than its factorization.

931013143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 931013143442 in words is "nine hundred thirty-one billion, thirteen million, one hundred forty-three thousand, four hundred forty-two".