12051534413 has 4 divisors (see below), whose sum is σ = 12760448220. Its totient is φ = 11342620608.

The previous prime is 12051534371. The next prime is 12051534427. The reversal of 12051534413 is 31443515021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31443515021 = 557 ⋅56451553.

It can be written as a sum of positive squares in 2 ways, for example, as 8303401129 + 3748133284 = 91123^2 + 61222^2 .

It is a cyclic number.

It is not a de Polignac number, because 12051534413 - 2¹⁴ = 12051518029 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 (12051534433) 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, 354456878 + ... + 354456911.

It is an arithmetic number, because the mean of its divisors is an integer number (3190112055).

Almost surely, 2^12051534413 is an apocalyptic number.

It is an amenable number.

12051534413 is a deficient number, since it is larger than the sum of its proper divisors (708913807).

12051534413 is an equidigital number, since it uses as much as digits as its factorization.

12051534413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708913806.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 12051534413 in words is "twelve billion, fifty-one million, five hundred thirty-four thousand, four hundred thirteen".