2123401403 has 2 divisors, whose sum is σ = 2123401404. Its totient is φ = 2123401402.

The previous prime is 2123401349. The next prime is 2123401409. The reversal of 2123401403 is 3041043212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123401403 - 2¹⁰ = 2123400379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123401409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061700701 + 1061700702.

It is an arithmetic number, because the mean of its divisors is an integer number (1061700702).

Almost surely, 2^2123401403 is an apocalyptic number.

2123401403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123401403 is an equidigital number, since it uses as much as digits as its factorization.

2123401403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2123401403 is about 46080.3798052924. The cubic root of 2123401403 is about 1285.3183267641.

Adding to 2123401403 its reverse (3041043212), we get a palindrome (5164444615).

The spelling of 2123401403 in words is "two billion, one hundred twenty-three million, four hundred one thousand, four hundred three".