123772030722 has 90 divisors (see below), whose sum is σ = 280805100147. Its totient is φ = 40748362200.

The previous prime is 123772030709. The next prime is 123772030729. The reversal of 123772030722 is 227030277321.

123772030722 is a `hidden beast` number, since 12 + 377 + 203 + 0 + 72 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61886015361 + 61886015361 = 248769^2 + 248769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=248769.

It is not an unprimeable number, because it can be changed into a prime (123772030729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 586597197 + ... + 586597407.

Almost surely, 2^123772030722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123772030722

123772030722 is an abundant number, since it is smaller than the sum of its proper divisors (157033069425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123772030722 is an frugal number, since it uses more digits than its factorization.

123772030722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 123772030722 in words is "one hundred twenty-three billion, seven hundred seventy-two million, thirty thousand, seven hundred twenty-two".