2103011001491 has 2 divisors, whose sum is σ = 2103011001492. Its totient is φ = 2103011001490.

The previous prime is 2103011001433. The next prime is 2103011001503. The reversal of 2103011001491 is 1941001103012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103011001491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103011001691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051505500745 + 1051505500746.

It is an arithmetic number, because the mean of its divisors is an integer number (1051505500746).

Almost surely, 2^{2103011001491} is an apocalyptic number.

2103011001491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103011001491 is an equidigital number, since it uses as much as digits as its factorization.

2103011001491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 2103011001491 in words is "two trillion, one hundred three billion, eleven million, one thousand, four hundred ninety-one".