123697110436 has 9 divisors (see below), whose sum is σ = 216471174241. Its totient is φ = 61848203512.

The previous prime is 123697110431. The next prime is 123697110437. The reversal of 123697110436 is 634011796321.

The square root of 123697110436 is 351706.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 53819360100 + 69877750336 = 231990^2 + 264344^2 .

It is a super-2 number, since 2×123697110436² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123697110392 and 123697110401.

It is not an unprimeable number, because it can be changed into a prime (123697110431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 615486 + ... + 791338.

Almost surely, 2^123697110436 is an apocalyptic number.

123697110436 is the 351706-th square number.

It is an amenable number.

123697110436 is a deficient number, since it is larger than the sum of its proper divisors (92774063805).

123697110436 is an frugal number, since it uses more digits than its factorization.

123697110436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351710 (or 175855 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 123697110436 in words is "one hundred twenty-three billion, six hundred ninety-seven million, one hundred ten thousand, four hundred thirty-six".