288923133122 has 42 divisors (see below), whose sum is σ = 472229644287. Its totient is φ = 132578334096.

The previous prime is 288923133061. The next prime is 288923133127. The reversal of 288923133122 is 221331329882.

It can be written as a sum of positive squares in 11 ways, for example, as 286395155281 + 2527977841 = 535159^2 + 50279^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=380081.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288923133127) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1670075828 + ... + 1670076000.

Almost surely, 2^288923133122 is an apocalyptic number.

288923133122 is a deficient number, since it is larger than the sum of its proper divisors (183306511165).

288923133122 is an frugal number, since it uses more digits than its factorization.

288923133122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 188 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The spelling of 288923133122 in words is "two hundred eighty-eight billion, nine hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty-two".