2123487888229 has 4 divisors (see below), whose sum is σ = 2124628936780. Its totient is φ = 2122346839680.

The previous prime is 2123487888191. The next prime is 2123487888281. The reversal of 2123487888229 is 9228887843212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9880757604 + 2113607130625 = 99402^2 + 1453825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123487888229 - 2²³ = 2123479499621 is a prime.

It is a super-2 number, since 2×2123487888229² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123487888299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570521484 + ... + 570525205.

It is an arithmetic number, because the mean of its divisors is an integer number (531157234195).

Almost surely, 2^{2123487888229} is an apocalyptic number.

It is an amenable number.

2123487888229 is a deficient number, since it is larger than the sum of its proper divisors (1141048551).

2123487888229 is a wasteful number, since it uses less digits than its factorization.

2123487888229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141048550.

The product of its digits is 49545216, while the sum is 64.

The spelling of 2123487888229 in words is "two trillion, one hundred twenty-three billion, four hundred eighty-seven million, eight hundred eighty-eight thousand, two hundred twenty-nine".