312121103102 has 8 divisors (see below), whose sum is σ = 468194592096. Its totient is φ = 156056239072.

The previous prime is 312121103057. The next prime is 312121103137. The reversal of 312121103102 is 201301121213.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064998 + ... + 2210985.

It is an arithmetic number, because the mean of its divisors is an integer number (58524324012).

Almost surely, 2^312121103102 is an apocalyptic number.

312121103102 is a deficient number, since it is larger than the sum of its proper divisors (156073488994).

312121103102 is a wasteful number, since it uses less digits than its factorization.

312121103102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312482.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312121103102 its reverse (201301121213), we get a palindrome (513422224315).

The spelling of 312121103102 in words is "three hundred twelve billion, one hundred twenty-one million, one hundred three thousand, one hundred two".