31200501142442 has 8 divisors (see below), whose sum is σ = 46802852635716. Its totient is φ = 15599550263872.

The previous prime is 31200501142379. The next prime is 31200501142451. The reversal of 31200501142442 is 24424110500213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29238341748001 + 1962159394441 = 5407249^2 + 1400771^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350097983 + ... + 350187090.

Almost surely, 2^{31200501142442} is an apocalyptic number.

31200501142442 is a deficient number, since it is larger than the sum of its proper divisors (15602351493274).

31200501142442 is a wasteful number, since it uses less digits than its factorization.

31200501142442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700307352.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 31200501142442 its reverse (24424110500213), we get a palindrome (55624611642655).

The spelling of 31200501142442 in words is "thirty-one trillion, two hundred billion, five hundred one million, one hundred forty-two thousand, four hundred forty-two".