101430155 has 4 divisors (see below), whose sum is σ = 121716192. Its totient is φ = 81144120.

The previous prime is 101430149. The next prime is 101430167. The reversal of 101430155 is 551034101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551034101 = 227 ⋅2427463.

It is not a de Polignac number, because 101430155 - 2¹⁶ = 101364619 is a prime.

It is a Duffinian 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, 10143011 + ... + 10143020.

It is an arithmetic number, because the mean of its divisors is an integer number (30429048).

Almost surely, 2^101430155 is an apocalyptic number.

101430155 is a deficient number, since it is larger than the sum of its proper divisors (20286037).

101430155 is an equidigital number, since it uses as much as digits as its factorization.

101430155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20286036.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 101430155 is about 10071.2538941286. The cubic root of 101430155 is about 466.3611483823.

Adding to 101430155 its reverse (551034101), we get a palindrome (652464256).

The spelling of 101430155 in words is "one hundred one million, four hundred thirty thousand, one hundred fifty-five".