Search a number
-
+
120122302031 = 149298046239
BaseRepresentation
bin110111111011111011…
…0001101111001001111
3102111001112022012100022
41233313312031321033
53432002302131111
6131103341452355
711451512502044
oct1576766157117
9374045265308
10120122302031
1146a419a9486
121b3448710bb
13b434639034
145b576a11cb
1531d0ab32db
hex1bf7d8de4f

120122302031 has 4 divisors (see below), whose sum is σ = 120130363200. Its totient is φ = 120114240864.

The previous prime is 120122301991. The next prime is 120122302049. The reversal of 120122302031 is 130203221021.

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

It is a cyclic number.

It is not a de Polignac number, because 120122302031 - 210 = 120122301007 is a prime.

It is a super-2 number, since 2×1201223020312 (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 (120122302081) 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, 4008191 + ... + 4038048.

It is an arithmetic number, because the mean of its divisors is an integer number (30032590800).

Almost surely, 2120122302031 is an apocalyptic number.

120122302031 is a deficient number, since it is larger than the sum of its proper divisors (8061169).

120122302031 is an equidigital number, since it uses as much as digits as its factorization.

120122302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061168.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120122302031 its reverse (130203221021), we get a palindrome (250325523052).

The spelling of 120122302031 in words is "one hundred twenty billion, one hundred twenty-two million, three hundred two thousand, thirty-one".

Divisors: 1 14929 8046239 120122302031