125142231530 has 16 divisors (see below), whose sum is σ = 225260598024. Its totient is φ = 50055874560.

The previous prime is 125142231419. The next prime is 125142231589. The reversal of 125142231530 is 35132241521.

It can be written as a sum of positive squares in 4 ways, for example, as 70952444161 + 54189787369 = 266369^2 + 232787^2 .

It is a super-2 number, since 2×125142231530² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125142231493 and 125142231502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571970 + ... + 759890.

Almost surely, 2^125142231530 is an apocalyptic number.

125142231530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125142231530 is a deficient number, since it is larger than the sum of its proper divisors (100118366494).

125142231530 is a wasteful number, since it uses less digits than its factorization.

125142231530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254521.

The product of its (nonzero) digits is 7200, while the sum is 29.

Subtracting from 125142231530 its reverse (35132241521), we obtain a palindrome (90009990009).

The spelling of 125142231530 in words is "one hundred twenty-five billion, one hundred forty-two million, two hundred thirty-one thousand, five hundred thirty".