12161131703 has 8 divisors (see below), whose sum is σ = 13900448160. Its totient is φ = 10422318240.

The previous prime is 12161131691. The next prime is 12161131709. The reversal of 12161131703 is 30713116121.

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 12161131703 - 2⁴ = 12161131687 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 (12161131709) 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, 72428 + ... + 171953.

It is an arithmetic number, because the mean of its divisors is an integer number (1737556020).

Almost surely, 2^12161131703 is an apocalyptic number.

12161131703 is a deficient number, since it is larger than the sum of its proper divisors (1739316457).

12161131703 is an equidigital number, since it uses as much as digits as its factorization.

12161131703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251497.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 12161131703 its reverse (30713116121), we get a palindrome (42874247824).

The spelling of 12161131703 in words is "twelve billion, one hundred sixty-one million, one hundred thirty-one thousand, seven hundred three".