125535033011 has 4 divisors (see below), whose sum is σ = 125542953624. Its totient is φ = 125527112400.

The previous prime is 125535032969. The next prime is 125535033031. The reversal of 125535033011 is 110330535521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125535033011 is a prime.

It is a super-2 number, since 2×125535033011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125535033031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936485 + ... + 3968246.

It is an arithmetic number, because the mean of its divisors is an integer number (31385738406).

Almost surely, 2^125535033011 is an apocalyptic number.

125535033011 is a deficient number, since it is larger than the sum of its proper divisors (7920613).

125535033011 is an equidigital number, since it uses as much as digits as its factorization.

125535033011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920612.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 125535033011 its reverse (110330535521), we get a palindrome (235865568532).

The spelling of 125535033011 in words is "one hundred twenty-five billion, five hundred thirty-five million, thirty-three thousand, eleven".