31403423102 has 4 divisors (see below), whose sum is σ = 47105134656. Its totient is φ = 15701711550.

The previous prime is 31403423099. The next prime is 31403423113. The reversal of 31403423102 is 20132430413.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7850855774 + ... + 7850855777.

It is an arithmetic number, because the mean of its divisors is an integer number (11776283664).

Almost surely, 2^31403423102 is an apocalyptic number.

31403423102 is a deficient number, since it is larger than the sum of its proper divisors (15701711554).

31403423102 is a wasteful number, since it uses less digits than its factorization.

31403423102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15701711553.

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

Adding to 31403423102 its reverse (20132430413), we get a palindrome (51535853515).

The spelling of 31403423102 in words is "thirty-one billion, four hundred three million, four hundred twenty-three thousand, one hundred two".