12029131 has 4 divisors (see below), whose sum is σ = 12139600. Its totient is φ = 11918664.

The previous prime is 12029123. The next prime is 12029137. The reversal of 12029131 is 13192021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12029131 - 2³ = 12029123 is a prime.

It is a super-2 number, since 2×12029131² = 289399985230322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12029099 and 12029108.

It is not an unprimeable number, because it can be changed into a prime (12029137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55071 + ... + 55288.

It is an arithmetic number, because the mean of its divisors is an integer number (3034900).

Almost surely, 2^12029131 is an apocalyptic number.

12029131 is a deficient number, since it is larger than the sum of its proper divisors (110469).

12029131 is a wasteful number, since it uses less digits than its factorization.

12029131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110468.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12029131 is about 3468.3037640899. The cubic root of 12029131 is about 229.1279580828.

The spelling of 12029131 in words is "twelve million, twenty-nine thousand, one hundred thirty-one".