125201277231 has 4 divisors (see below), whose sum is σ = 166935036312. Its totient is φ = 83467518152.

The previous prime is 125201277217. The next prime is 125201277259. The reversal of 125201277231 is 132772102521.

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

It is a cyclic number.

It is not a de Polignac number, because 125201277231 - 2⁵ = 125201277199 is a prime.

It is a super-2 number, since 2×125201277231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125201277192 and 125201277201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125201277281) 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, 20866879536 + ... + 20866879541.

It is an arithmetic number, because the mean of its divisors is an integer number (41733759078).

Almost surely, 2^125201277231 is an apocalyptic number.

125201277231 is a deficient number, since it is larger than the sum of its proper divisors (41733759081).

125201277231 is an equidigital number, since it uses as much as digits as its factorization.

125201277231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41733759080.

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 125201277231 its reverse (132772102521), we get a palindrome (257973379752).

The spelling of 125201277231 in words is "one hundred twenty-five billion, two hundred one million, two hundred seventy-seven thousand, two hundred thirty-one".