121302131479 has 2 divisors, whose sum is σ = 121302131480. Its totient is φ = 121302131478.

The previous prime is 121302131459. The next prime is 121302131521. The reversal of 121302131479 is 974131203121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121302131479 - 2¹⁵ = 121302098711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121302131459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651065739 + 60651065740.

It is an arithmetic number, because the mean of its divisors is an integer number (60651065740).

Almost surely, 2^121302131479 is an apocalyptic number.

121302131479 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302131479 is an equidigital number, since it uses as much as digits as its factorization.

121302131479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 121302131479 in words is "one hundred twenty-one billion, three hundred two million, one hundred thirty-one thousand, four hundred seventy-nine".