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2101122023 = 7111316712569
BaseRepresentation
bin111110100111100…
…1001001111100111
312102102122001120012
41331033021033213
513300341401043
6544254200435
7103032146120
oct17517111747
95372561505
102101122023
11989035090
124a77b311b
132763c1790
1415d09d047
15c46d9a18
hex7d3c93e7

2101122023 has 32 divisors (see below), whose sum is σ = 2838205440. Its totient is φ = 1502127360.

The previous prime is 2101122017. The next prime is 2101122031. The reversal of 2101122023 is 3202211012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2101122023 - 26 = 2101121959 is a prime.

It is a super-2 number, since 2×21011220232 = 8829427511071225058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101121989 and 2101122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101122073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160883 + ... + 173451.

It is an arithmetic number, because the mean of its divisors is an integer number (88693920).

Almost surely, 22101122023 is an apocalyptic number.

2101122023 is a deficient number, since it is larger than the sum of its proper divisors (737083417).

2101122023 is a wasteful number, since it uses less digits than its factorization.

2101122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12767.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101122023 is about 45837.9975893363. The cubic root of 2101122023 is about 1280.8071941070.

Adding to 2101122023 its reverse (3202211012), we get a palindrome (5303333035).

It can be divided in two parts, 21011 and 22023, that added together give a palindrome (43034).

The spelling of 2101122023 in words is "two billion, one hundred one million, one hundred twenty-two thousand, twenty-three".

Divisors: 1 7 11 13 77 91 143 167 1001 1169 1837 2171 12569 12859 15197 23881 87983 138259 163397 167167 967813 1143779 1797367 2099023 12581569 14693161 23089253 27287299 161624771 191011093 300160289 2101122023