31003200342 has 12 divisors (see below), whose sum is σ = 67173600780. Its totient is φ = 10334400108.

The previous prime is 31003200323. The next prime is 31003200383. The reversal of 31003200342 is 24300230013.

31003200342 is a `hidden beast` number, since 3 + 1 + 0 + 0 + 320 + 0 + 342 = 666.

It is a super-2 number, since 2×31003200342² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1722400019 = 31003200342 / (3 + 1 + 0 + 0 + 3 + 2 + 0 + 0 + 3 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 861199992 + ... + 861200027.

It is an arithmetic number, because the mean of its divisors is an integer number (5597800065).

Almost surely, 2^31003200342 is an apocalyptic number.

31003200342 is an abundant number, since it is smaller than the sum of its proper divisors (36170400438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31003200342 is a wasteful number, since it uses less digits than its factorization.

31003200342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722400027 (or 1722400024 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31003200342 its reverse (24300230013), we get a palindrome (55303430355).

The spelling of 31003200342 in words is "thirty-one billion, three million, two hundred thousand, three hundred forty-two".