2103312000421 has 2 divisors, whose sum is σ = 2103312000422. Its totient is φ = 2103312000420.

The previous prime is 2103312000373. The next prime is 2103312000463. The reversal of 2103312000421 is 1240002133012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1882425160225 + 220886840196 = 1372015^2 + 469986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103312000421 - 2³³ = 2094722065829 is a prime.

It is a super-2 number, since 2×2103312000421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103312000521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051656000210 + 1051656000211.

It is an arithmetic number, because the mean of its divisors is an integer number (1051656000211).

Almost surely, 2^{2103312000421} is an apocalyptic number.

It is an amenable number.

2103312000421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103312000421 is an equidigital number, since it uses as much as digits as its factorization.

2103312000421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2103312000421 its reverse (1240002133012), we get a palindrome (3343314133433).

The spelling of 2103312000421 in words is "two trillion, one hundred three billion, three hundred twelve million, four hundred twenty-one", and thus it is an aban number.