123536335025 has 6 divisors (see below), whose sum is σ = 153185055462. Its totient is φ = 98829068000.

The previous prime is 123536335007. The next prime is 123536335037. The reversal of 123536335025 is 520533635321.

It can be written as a sum of positive squares in 3 ways, for example, as 15899192464 + 107637142561 = 126092^2 + 328081^2 .

It is not a de Polignac number, because 123536335025 - 2¹⁶ = 123536269489 is a prime.

It is a super-2 number, since 2×123536335025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123536335025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2470726676 + ... + 2470726725.

It is an arithmetic number, because the mean of its divisors is an integer number (25530842577).

Almost surely, 2^123536335025 is an apocalyptic number.

It is an amenable number.

123536335025 is a deficient number, since it is larger than the sum of its proper divisors (29648720437).

123536335025 is an equidigital number, since it uses as much as digits as its factorization.

123536335025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941453411 (or 4941453406 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 38.

The spelling of 123536335025 in words is "one hundred twenty-three billion, five hundred thirty-six million, three hundred thirty-five thousand, twenty-five".