31143428302 has 8 divisors (see below), whose sum is σ = 53388734256. Its totient is φ = 13347183552.

The previous prime is 31143428297. The next prime is 31143428311. The reversal of 31143428302 is 20382434113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112265283 + ... + 1112265310.

It is an arithmetic number, because the mean of its divisors is an integer number (6673591782).

Almost surely, 2^31143428302 is an apocalyptic number.

31143428302 is a deficient number, since it is larger than the sum of its proper divisors (22245305954).

31143428302 is a wasteful number, since it uses less digits than its factorization.

31143428302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224530602.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 31143428302 in words is "thirty-one billion, one hundred forty-three million, four hundred twenty-eight thousand, three hundred two".