2012445131 has 4 divisors (see below), whose sum is σ = 2037919200. Its totient is φ = 1986971064.

The previous prime is 2012445121. The next prime is 2012445143. The reversal of 2012445131 is 1315442102.

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 2012445131 - 2⁶ = 2012445067 is a prime.

It is a super-2 number, since 2×2012445131² = 8099870810571214322, 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 = 2012445097 and 2012445106.

It is not an unprimeable number, because it can be changed into a prime (2012445121) 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, 12736916 + ... + 12737073.

It is an arithmetic number, because the mean of its divisors is an integer number (509479800).

Almost surely, 2^2012445131 is an apocalyptic number.

2012445131 is a deficient number, since it is larger than the sum of its proper divisors (25474069).

2012445131 is an equidigital number, since it uses as much as digits as its factorization.

2012445131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25474068.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2012445131 is about 44860.2845621826. The cubic root of 2012445131 is about 1262.5289618033.

Adding to 2012445131 its reverse (1315442102), we get a palindrome (3327887233).

The spelling of 2012445131 in words is "two billion, twelve million, four hundred forty-five thousand, one hundred thirty-one".