31123103220214 has 4 divisors (see below), whose sum is σ = 46684654830324. Its totient is φ = 15561551610106.

The previous prime is 31123103220197. The next prime is 31123103220283. The reversal of 31123103220214 is 41202230132113.

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, 7780775805052 + ... + 7780775805055.

It is an arithmetic number, because the mean of its divisors is an integer number (11671163707581).

Almost surely, 2^{31123103220214} is an apocalyptic number.

31123103220214 is a deficient number, since it is larger than the sum of its proper divisors (15561551610110).

31123103220214 is a wasteful number, since it uses less digits than its factorization.

31123103220214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561551610109.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31123103220214 its reverse (41202230132113), we get a palindrome (72325333352327).

The spelling of 31123103220214 in words is "thirty-one trillion, one hundred twenty-three billion, one hundred three million, two hundred twenty thousand, two hundred fourteen".