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120023302031 = 1031165274777
BaseRepresentation
bin110111111000111110…
…0100011111110001111
3102110210122000110212122
41233301330203332033
53431301431131111
6131045443523155
711446201143233
oct1576174437617
9373718013778
10120023302031
11469a10302a6
121b3176894bb
13b419c85759
145b484905c3
1531c7059cdb
hex1bf1f23f8f

120023302031 has 4 divisors (see below), whose sum is σ = 121188576912. Its totient is φ = 118858027152.

The previous prime is 120023301991. The next prime is 120023302039. The reversal of 120023302031 is 130203320021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130203320021 = 149759869419.

It is a cyclic number.

It is not a de Polignac number, because 120023302031 - 214 = 120023285647 is a prime.

It is a super-2 number, since 2×1200233020312 (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 (120023302039) 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, 582637286 + ... + 582637491.

It is an arithmetic number, because the mean of its divisors is an integer number (30297144228).

Almost surely, 2120023302031 is an apocalyptic number.

120023302031 is a deficient number, since it is larger than the sum of its proper divisors (1165274881).

120023302031 is a wasteful number, since it uses less digits than its factorization.

120023302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165274880.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 120023302031 its reverse (130203320021), we get a palindrome (250226622052).

The spelling of 120023302031 in words is "one hundred twenty billion, twenty-three million, three hundred two thousand, thirty-one".

Divisors: 1 103 1165274777 120023302031