1342312261 has 2 divisors, whose sum is σ = 1342312262. Its totient is φ = 1342312260.

The previous prime is 1342312201. The next prime is 1342312273. The reversal of 1342312261 is 1622132431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718561636 + 623750625 = 26806^2 + 24975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342312261 - 2¹³ = 1342304069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342312201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671156130 + 671156131.

It is an arithmetic number, because the mean of its divisors is an integer number (671156131).

Almost surely, 2^1342312261 is an apocalyptic number.

It is an amenable number.

1342312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342312261 is an equidigital number, since it uses as much as digits as its factorization.

1342312261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 1342312261 is about 36637.5799009705. The cubic root of 1342312261 is about 1103.1075381743.

Adding to 1342312261 its reverse (1622132431), we get a palindrome (2964444692).

The spelling of 1342312261 in words is "one billion, three hundred forty-two million, three hundred twelve thousand, two hundred sixty-one".