1402020121079 has 2 divisors, whose sum is σ = 1402020121080. Its totient is φ = 1402020121078.

The previous prime is 1402020121031. The next prime is 1402020121081. The reversal of 1402020121079 is 9701210202041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402020121079 is a prime.

Together with 1402020121081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402020121279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701010060539 + 701010060540.

It is an arithmetic number, because the mean of its divisors is an integer number (701010060540).

Almost surely, 2^{1402020121079} is an apocalyptic number.

1402020121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402020121079 is an equidigital number, since it uses as much as digits as its factorization.

1402020121079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 1402020121079 in words is "one trillion, four hundred two billion, twenty million, one hundred twenty-one thousand, seventy-nine".