125321511142 has 32 divisors (see below), whose sum is σ = 199949653440. Its totient is φ = 58778079360.

The previous prime is 125321511137. The next prime is 125321511173. The reversal of 125321511142 is 241115123521.

It is a self number, because there is not a number n which added to its sum of digits gives 125321511142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794084 + ... + 5815672.

It is an arithmetic number, because the mean of its divisors is an integer number (6248426670).

Almost surely, 2^125321511142 is an apocalyptic number.

125321511142 is a deficient number, since it is larger than the sum of its proper divisors (74628142298).

125321511142 is a wasteful number, since it uses less digits than its factorization.

125321511142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24048.

The product of its digits is 2400, while the sum is 28.

Adding to 125321511142 its reverse (241115123521), we get a palindrome (366436634663).

The spelling of 125321511142 in words is "one hundred twenty-five billion, three hundred twenty-one million, five hundred eleven thousand, one hundred forty-two".