31203230042 has 8 divisors (see below), whose sum is σ = 46806228000. Its totient is φ = 15601154044.

The previous prime is 31203230041. The next prime is 31203230053. The reversal of 31203230042 is 24003230213.

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

It is a junction number, because it is equal to n+sod(n) for n = 31203229996 and 31203230023.

It is not an unprimeable number, because it can be changed into a prime (31203230041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138542 + ... + 285657.

It is an arithmetic number, because the mean of its divisors is an integer number (5850778500).

Almost surely, 2^31203230042 is an apocalyptic number.

31203230042 is a deficient number, since it is larger than the sum of its proper divisors (15602997958).

31203230042 is a wasteful number, since it uses less digits than its factorization.

31203230042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460980.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31203230042 its reverse (24003230213), we get a palindrome (55206460255).

The spelling of 31203230042 in words is "thirty-one billion, two hundred three million, two hundred thirty thousand, forty-two".