123261525011 has 8 divisors (see below), whose sum is σ = 124432717200. Its totient is φ = 122091066720.

The previous prime is 123261525001. The next prime is 123261525029. The reversal of 123261525011 is 110525162321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123261525011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123261525001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157016 + ... + 520746.

It is an arithmetic number, because the mean of its divisors is an integer number (15554089650).

Almost surely, 2^123261525011 is an apocalyptic number.

123261525011 is a deficient number, since it is larger than the sum of its proper divisors (1171192189).

123261525011 is a wasteful number, since it uses less digits than its factorization.

123261525011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366949.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 123261525011 its reverse (110525162321), we get a palindrome (233786687332).

The spelling of 123261525011 in words is "one hundred twenty-three billion, two hundred sixty-one million, five hundred twenty-five thousand, eleven".