120115102011055 has 4 divisors (see below), whose sum is σ = 144138122413272. Its totient is φ = 96092081608840.

The previous prime is 120115102011043. The next prime is 120115102011103. The reversal of 120115102011055 is 550110201511021.

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

It is not a de Polignac number, because 120115102011055 - 2²¹ = 120115099913903 is a prime.

It is a super-2 number, since 2×120115102011055² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12011510201101 + ... + 12011510201110.

It is an arithmetic number, because the mean of its divisors is an integer number (36034530603318).

Almost surely, 2^{120115102011055} is an apocalyptic number.

120115102011055 is a deficient number, since it is larger than the sum of its proper divisors (24023020402217).

120115102011055 is an equidigital number, since it uses as much as digits as its factorization.

120115102011055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24023020402216.

The product of its (nonzero) digits is 500, while the sum is 25.

Adding to 120115102011055 its reverse (550110201511021), we get a palindrome (670225303522076).

The spelling of 120115102011055 in words is "one hundred twenty trillion, one hundred fifteen billion, one hundred two million, eleven thousand, fifty-five".