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1123020120 = 23359358501
BaseRepresentation
bin100001011101111…
…1110110101011000
32220021011022222210
41002323332311120
54244443120440
6303234115120
736554341065
oct10273766530
92807138883
101123020120
11526a08702
1227411baa0
1314b880961
14a9211c6c
15688d1a80
hex42efed58

1123020120 has 32 divisors (see below), whose sum is σ = 3369060720. Its totient is φ = 299472000.

The previous prime is 1123020113. The next prime is 1123020139. The reversal of 1123020120 is 210203211.

It is a super-2 number, since 2×11230201202 = 2522348379849628800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1123020096 and 1123020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4679131 + ... + 4679370.

Almost surely, 21123020120 is an apocalyptic number.

1123020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123020120 is an abundant number, since it is smaller than the sum of its proper divisors (2246040600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123020120 is a wasteful number, since it uses less digits than its factorization.

1123020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9358515 (or 9358511 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1123020120 is about 33511.4923571004. The cubic root of 1123020120 is about 1039.4314323175.

Adding to 1123020120 its reverse (210203211), we get a palindrome (1333223331).

The spelling of 1123020120 in words is "one billion, one hundred twenty-three million, twenty thousand, one hundred twenty".