20203101231139 has 2 divisors, whose sum is σ = 20203101231140. Its totient is φ = 20203101231138.

The previous prime is 20203101231097. The next prime is 20203101231161. The reversal of 20203101231139 is 93113210130202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20203101231139 - 2⁴³ = 11407008208931 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203101231199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101550615569 + 10101550615570.

It is an arithmetic number, because the mean of its divisors is an integer number (10101550615570).

Almost surely, 2^{20203101231139} is an apocalyptic number.

20203101231139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203101231139 is an equidigital number, since it uses as much as digits as its factorization.

20203101231139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 20203101231139 in words is "twenty trillion, two hundred three billion, one hundred one million, two hundred thirty-one thousand, one hundred thirty-nine".