31323011102 has 4 divisors (see below), whose sum is σ = 46984516656. Its totient is φ = 15661505550.

The previous prime is 31323011063. The next prime is 31323011107. The reversal of 31323011102 is 20111032313.

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

It is a super-2 number, since 2×31323011102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323011107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7830752774 + ... + 7830752777.

It is an arithmetic number, because the mean of its divisors is an integer number (11746129164).

Almost surely, 2^31323011102 is an apocalyptic number.

31323011102 is a deficient number, since it is larger than the sum of its proper divisors (15661505554).

31323011102 is a wasteful number, since it uses less digits than its factorization.

31323011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15661505553.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31323011102 its reverse (20111032313), we get a palindrome (51434043415).

The spelling of 31323011102 in words is "thirty-one billion, three hundred twenty-three million, eleven thousand, one hundred two".