31111231123103 has 8 divisors (see below), whose sum is σ = 31205662952400. Its totient is φ = 31016801946240.

The previous prime is 31111231123079. The next prime is 31111231123123. The reversal of 31111231123103 is 30132113211113.

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

It is a cyclic number.

It is not a de Polignac number, because 31111231123103 - 2³⁴ = 31094051253919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31111231123123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24248951 + ... + 25499687.

It is an arithmetic number, because the mean of its divisors is an integer number (3900707869050).

Almost surely, 2^{31111231123103} is an apocalyptic number.

31111231123103 is a deficient number, since it is larger than the sum of its proper divisors (94431829297).

31111231123103 is a wasteful number, since it uses less digits than its factorization.

31111231123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326217.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31111231123103 its reverse (30132113211113), we get a palindrome (61243344334216).

The spelling of 31111231123103 in words is "thirty-one trillion, one hundred eleven billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred three".