120129028807 has 2 divisors, whose sum is σ = 120129028808. Its totient is φ = 120129028806.

The previous prime is 120129028777. The next prime is 120129028813. The reversal of 120129028807 is 708820921021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120129028807 is a prime.

It is a super-2 number, since 2×120129028807² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120129028807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120129028897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60064514403 + 60064514404.

It is an arithmetic number, because the mean of its divisors is an integer number (60064514404).

Almost surely, 2^120129028807 is an apocalyptic number.

120129028807 is a deficient number, since it is larger than the sum of its proper divisors (1).

120129028807 is an equidigital number, since it uses as much as digits as its factorization.

120129028807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

Adding to 120129028807 its reverse (708820921021), we get a palindrome (828949949828).

The spelling of 120129028807 in words is "one hundred twenty billion, one hundred twenty-nine million, twenty-eight thousand, eight hundred seven".