31212203230102 has 8 divisors (see below), whose sum is σ = 46818749496816. Its totient is φ = 15605953397832.

The previous prime is 31212203230067. The next prime is 31212203230111. The reversal of 31212203230102 is 20103230221213.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73845193 + ... + 74266660.

It is an arithmetic number, because the mean of its divisors is an integer number (5852343687102).

Almost surely, 2^{31212203230102} is an apocalyptic number.

31212203230102 is a deficient number, since it is larger than the sum of its proper divisors (15606546266714).

31212203230102 is a wasteful number, since it uses less digits than its factorization.

31212203230102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148217222.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31212203230102 its reverse (20103230221213), we get a palindrome (51315433451315).

The spelling of 31212203230102 in words is "thirty-one trillion, two hundred twelve billion, two hundred three million, two hundred thirty thousand, one hundred two".