125640333111 has 8 divisors (see below), whose sum is σ = 167536641520. Its totient is φ = 83752123392.

The previous prime is 125640333107. The next prime is 125640333113. The reversal of 125640333111 is 111333046521.

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

It is not a de Polignac number, because 125640333111 - 2² = 125640333107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125640333113) 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, 1988380 + ... + 2050593.

It is an arithmetic number, because the mean of its divisors is an integer number (20942080190).

Almost surely, 2^125640333111 is an apocalyptic number.

125640333111 is a deficient number, since it is larger than the sum of its proper divisors (41896308409).

125640333111 is a wasteful number, since it uses less digits than its factorization.

125640333111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049345.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 125640333111 its reverse (111333046521), we get a palindrome (236973379632).

The spelling of 125640333111 in words is "one hundred twenty-five billion, six hundred forty million, three hundred thirty-three thousand, one hundred eleven".