1012131212341 has 4 divisors (see below), whose sum is σ = 1012161112300. Its totient is φ = 1012101312384.

The previous prime is 1012131212327. The next prime is 1012131212359. The reversal of 1012131212341 is 1432121312101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 634139876241 + 377991336100 = 796329^2 + 614810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012131212341 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 (1012131212311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14899146 + ... + 14966923.

It is an arithmetic number, because the mean of its divisors is an integer number (253040278075).

Almost surely, 2^{1012131212341} is an apocalyptic number.

It is an amenable number.

1012131212341 is a deficient number, since it is larger than the sum of its proper divisors (29899959).

1012131212341 is an equidigital number, since it uses as much as digits as its factorization.

1012131212341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29899958.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1012131212341 its reverse (1432121312101), we get a palindrome (2444252524442).

The spelling of 1012131212341 in words is "one trillion, twelve billion, one hundred thirty-one million, two hundred twelve thousand, three hundred forty-one".