31212001102 has 8 divisors (see below), whose sum is σ = 47004528312. Its totient is φ = 15543825000.

The previous prime is 31212001061. The next prime is 31212001127. The reversal of 31212001102 is 20110021213.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31087149 + ... + 31088152.

It is an arithmetic number, because the mean of its divisors is an integer number (5875566039).

Almost surely, 2^31212001102 is an apocalyptic number.

31212001102 is a deficient number, since it is larger than the sum of its proper divisors (15792527210).

31212001102 is a wasteful number, since it uses less digits than its factorization.

31212001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62175554.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31212001102 its reverse (20110021213), we get a palindrome (51322022315).

The spelling of 31212001102 in words is "thirty-one billion, two hundred twelve million, one thousand, one hundred two".