1001869123403 has 2 divisors, whose sum is σ = 1001869123404. Its totient is φ = 1001869123402.

The previous prime is 1001869123351. The next prime is 1001869123417. The reversal of 1001869123403 is 3043219681001.

1001869123403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001869123403 - 2¹⁶ = 1001869057867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001869126403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500934561701 + 500934561702.

It is an arithmetic number, because the mean of its divisors is an integer number (500934561702).

Almost surely, 2^{1001869123403} is an apocalyptic number.

1001869123403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001869123403 is an equidigital number, since it uses as much as digits as its factorization.

1001869123403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 1001869123403 in words is "one trillion, one billion, eight hundred sixty-nine million, one hundred twenty-three thousand, four hundred three".