120124200511 has 4 divisors (see below), whose sum is σ = 137284800592. Its totient is φ = 102963600432.

The previous prime is 120124200473. The next prime is 120124200563. The reversal of 120124200511 is 115002421021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120124200511 - 2³¹ = 117976716863 is a prime.

It is a super-2 number, since 2×120124200511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120124200211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8580300030 + ... + 8580300043.

It is an arithmetic number, because the mean of its divisors is an integer number (34321200148).

Almost surely, 2^120124200511 is an apocalyptic number.

120124200511 is a deficient number, since it is larger than the sum of its proper divisors (17160600081).

120124200511 is an equidigital number, since it uses as much as digits as its factorization.

120124200511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17160600080.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 120124200511 its reverse (115002421021), we get a palindrome (235126621532).

The spelling of 120124200511 in words is "one hundred twenty billion, one hundred twenty-four million, two hundred thousand, five hundred eleven".