10203121013039 has 2 divisors, whose sum is σ = 10203121013040. Its totient is φ = 10203121013038.

The previous prime is 10203121013011. The next prime is 10203121013053. The reversal of 10203121013039 is 93031012130201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10203121013039 - 2²⁰ = 10203119964463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10203121012999 and 10203121013017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203121013009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101560506519 + 5101560506520.

It is an arithmetic number, because the mean of its divisors is an integer number (5101560506520).

Almost surely, 2^{10203121013039} is an apocalyptic number.

10203121013039 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203121013039 is an equidigital number, since it uses as much as digits as its factorization.

10203121013039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 10203121013039 in words is "ten trillion, two hundred three billion, one hundred twenty-one million, thirteen thousand, thirty-nine".