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120112331 = 1011189231
BaseRepresentation
bin1110010100011…
…00010011001011
322101000100010212
413022030103023
5221222043311
615530231335
72655636503
oct712142313
9271010125
10120112331
1161889199
123428554b
131bb660b1
1411d48a03
15a828c8b
hex728c4cb

120112331 has 4 divisors (see below), whose sum is σ = 121301664. Its totient is φ = 118923000.

The previous prime is 120112313. The next prime is 120112337. The reversal of 120112331 is 133211021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120112331 is a prime.

It is a super-2 number, since 2×1201123312 = 28853944116507122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120112337) 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, 594515 + ... + 594716.

It is an arithmetic number, because the mean of its divisors is an integer number (30325416).

Almost surely, 2120112331 is an apocalyptic number.

120112331 is a deficient number, since it is larger than the sum of its proper divisors (1189333).

120112331 is a wasteful number, since it uses less digits than its factorization.

120112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189332.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 120112331 is about 10959.5771360030. The cubic root of 120112331 is about 493.3962735722.

Adding to 120112331 its reverse (133211021), we get a palindrome (253323352).

The spelling of 120112331 in words is "one hundred twenty million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 101 1189231 120112331