120102151 has 4 divisors (see below), whose sum is σ = 129340792. Its totient is φ = 110863512.

The previous prime is 120102133. The next prime is 120102167. The reversal of 120102151 is 151201021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151201021 = 47 ⋅3217043.

It is a cyclic number.

It is not a de Polignac number, because 120102151 - 2¹¹ = 120100103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9238627 = 120102151 / (1 + 2 + 0 + 1 + 0 + 2 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4619301 + ... + 4619326.

It is an arithmetic number, because the mean of its divisors is an integer number (32335198).

Almost surely, 2^120102151 is an apocalyptic number.

120102151 is a deficient number, since it is larger than the sum of its proper divisors (9238641).

120102151 is an equidigital number, since it uses as much as digits as its factorization.

120102151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9238640.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 120102151 is about 10959.1126921845. The cubic root of 120102151 is about 493.3823340765.

Adding to 120102151 its reverse (151201021), we get a palindrome (271303172).

It can be divided in two parts, 12010 and 2151, that added together give a square (14161 = 119²).

The spelling of 120102151 in words is "one hundred twenty million, one hundred two thousand, one hundred fifty-one".