31111301123 has 8 divisors (see below), whose sum is σ = 36781834080. Its totient is φ = 25747283520.

The previous prime is 31111301113. The next prime is 31111301161. The reversal of 31111301123 is 32110311113.

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

It is not a de Polignac number, because 31111301123 - 2⁴ = 31111301107 is a prime.

It is a super-2 number, since 2×31111301123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31111301113) 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, 76628618 + ... + 76629023.

It is an arithmetic number, because the mean of its divisors is an integer number (4597729260).

Almost surely, 2^31111301123 is an apocalyptic number.

31111301123 is a deficient number, since it is larger than the sum of its proper divisors (5670532957).

31111301123 is a wasteful number, since it uses less digits than its factorization.

31111301123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153257677.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31111301123 its reverse (32110311113), we get a palindrome (63221612236).

The spelling of 31111301123 in words is "thirty-one billion, one hundred eleven million, three hundred one thousand, one hundred twenty-three".