12031237969 has 27 divisors (see below), whose sum is σ = 13326964329. Its totient is φ = 10859013000.

The previous prime is 12031237963. The next prime is 12031237979. The reversal of 12031237969 is 96973213021.

The square root of 12031237969 is 109687.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 12031237969 - 2⁵ = 12031237937 is a prime.

It is a super-2 number, since 2×12031237969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031237963) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 47933094 + ... + 47933344.

Almost surely, 2^12031237969 is an apocalyptic number.

12031237969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12031237969 is the 109687-th square number.

12031237969 is the 54844-th centered octagonal number.

It is an amenable number.

12031237969 is a deficient number, since it is larger than the sum of its proper divisors (1295726360).

12031237969 is an frugal number, since it uses more digits than its factorization.

12031237969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

It can be divided in two parts, 12031 and 237969, that added together give a square (250000 = 500²).

The spelling of 12031237969 in words is "twelve billion, thirty-one million, two hundred thirty-seven thousand, nine hundred sixty-nine".