31423304210 has 8 divisors (see below), whose sum is σ = 56561947596. Its totient is φ = 12569321680.

The previous prime is 31423304117. The next prime is 31423304219. The reversal of 31423304210 is 1240332413.

It can be written as a sum of positive squares in 2 ways, for example, as 31152603001 + 270701209 = 176501^2 + 16453^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31423304219) 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, 1571165201 + ... + 1571165220.

Almost surely, 2^31423304210 is an apocalyptic number.

31423304210 is a deficient number, since it is larger than the sum of its proper divisors (25138643386).

31423304210 is a wasteful number, since it uses less digits than its factorization.

31423304210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142330428.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31423304210 its reverse (1240332413), we get a palindrome (32663636623).

The spelling of 31423304210 in words is "thirty-one billion, four hundred twenty-three million, three hundred four thousand, two hundred ten".