2123041429 has 2 divisors, whose sum is σ = 2123041430. Its totient is φ = 2123041428.

The previous prime is 2123041421. The next prime is 2123041469. The reversal of 2123041429 is 9241403212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1443240100 + 679801329 = 37990^2 + 26073^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123041429 - 2³ = 2123041421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123041397 and 2123041406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123041421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061520714 + 1061520715.

It is an arithmetic number, because the mean of its divisors is an integer number (1061520715).

Almost surely, 2^2123041429 is an apocalyptic number.

It is an amenable number.

2123041429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123041429 is an equidigital number, since it uses as much as digits as its factorization.

2123041429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2123041429 is about 46076.4737040499. The cubic root of 2123041429 is about 1285.2456905797.

The spelling of 2123041429 in words is "two billion, one hundred twenty-three million, forty-one thousand, four hundred twenty-nine".