1021031320039 has 2 divisors, whose sum is σ = 1021031320040. Its totient is φ = 1021031320038.

The previous prime is 1021031319941. The next prime is 1021031320121. The reversal of 1021031320039 is 9300231301201.

It is a strong prime.

It is an emirp because it is prime and its reverse (9300231301201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021031320039 - 2⁹ = 1021031319527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021031319995 and 1021031320022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021031390039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510515660019 + 510515660020.

It is an arithmetic number, because the mean of its divisors is an integer number (510515660020).

Almost surely, 2^{1021031320039} is an apocalyptic number.

1021031320039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021031320039 is an equidigital number, since it uses as much as digits as its factorization.

1021031320039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 1021031320039 in words is "one trillion, twenty-one billion, thirty-one million, three hundred twenty thousand, thirty-nine".