125515104043 has 16 divisors (see below), whose sum is σ = 144506594560. Its totient is φ = 106791501600.

The previous prime is 125515103981. The next prime is 125515104049. The reversal of 125515104043 is 340401515521.

It is not a de Polignac number, because 125515104043 - 2²⁹ = 124978233131 is a prime.

It is a super-2 number, since 2×125515104043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125515103996 and 125515104014.

It is not an unprimeable number, because it can be changed into a prime (125515104049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447673 + ... + 671893.

It is an arithmetic number, because the mean of its divisors is an integer number (9031662160).

Almost surely, 2^125515104043 is an apocalyptic number.

125515104043 is a deficient number, since it is larger than the sum of its proper divisors (18991490517).

125515104043 is a wasteful number, since it uses less digits than its factorization.

125515104043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224818.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 125515104043 its reverse (340401515521), we get a palindrome (465916619564).

The spelling of 125515104043 in words is "one hundred twenty-five billion, five hundred fifteen million, one hundred four thousand, forty-three".