125043440402 has 16 divisors (see below), whose sum is σ = 190412459232. Its totient is φ = 61573089600.

The previous prime is 125043440323. The next prime is 125043440419. The reversal of 125043440402 is 204044340521.

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, 427658 + ... + 658010.

It is an arithmetic number, because the mean of its divisors is an integer number (11900778702).

Almost surely, 2^125043440402 is an apocalyptic number.

125043440402 is a deficient number, since it is larger than the sum of its proper divisors (65369018830).

125043440402 is a wasteful number, since it uses less digits than its factorization.

125043440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234473.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 125043440402 its reverse (204044340521), we get a palindrome (329087780923).

The spelling of 125043440402 in words is "one hundred twenty-five billion, forty-three million, four hundred forty thousand, four hundred two".