1021013023049 has 2 divisors, whose sum is σ = 1021013023050. Its totient is φ = 1021013023048.

The previous prime is 1021013023021. The next prime is 1021013023073. The reversal of 1021013023049 is 9403203101201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752929321225 + 268083701824 = 867715^2 + 517768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021013023049 - 2¹⁶ = 1021012957513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021013023099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510506511524 + 510506511525.

It is an arithmetic number, because the mean of its divisors is an integer number (510506511525).

Almost surely, 2^{1021013023049} is an apocalyptic number.

It is an amenable number.

1021013023049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021013023049 is an equidigital number, since it uses as much as digits as its factorization.

1021013023049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1021013023049 in words is "one trillion, twenty-one billion, thirteen million, twenty-three thousand, forty-nine".