1312402141 has 2 divisors, whose sum is σ = 1312402142. Its totient is φ = 1312402140.

The previous prime is 1312402051. The next prime is 1312402151. The reversal of 1312402141 is 1412042131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208952900 + 103449241 = 34770^2 + 10171^2 .

It is an emirp because it is prime and its reverse (1412042131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312402141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312402151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656201070 + 656201071.

It is an arithmetic number, because the mean of its divisors is an integer number (656201071).

Almost surely, 2^1312402141 is an apocalyptic number.

It is an amenable number.

1312402141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312402141 is an equidigital number, since it uses as much as digits as its factorization.

1312402141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1312402141 is about 36227.0912577866. The cubic root of 1312402141 is about 1094.8525731615.

Adding to 1312402141 its reverse (1412042131), we get a palindrome (2724444272).

The spelling of 1312402141 in words is "one billion, three hundred twelve million, four hundred two thousand, one hundred forty-one".