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32113102121 = 291107348349
BaseRepresentation
bin11101111010000101…
…110000110100101001
310001220000110121112122
4131322011300310221
51011231423231441
622430315121025
72214535602302
oct357205606451
9101800417478
1032113102121
111268a010a21
126282743175
13304a0bc799
1417a8d457a9
15c7e3cd34b
hex77a170d29

32113102121 has 4 divisors (see below), whose sum is σ = 33220450500. Its totient is φ = 31005753744.

The previous prime is 32113102103. The next prime is 32113102127. The reversal of 32113102121 is 12120131123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12120131123 = 46732593651.

It can be written as a sum of positive squares in 2 ways, for example, as 21387600025 + 10725502096 = 146245^2 + 103564^2 .

It is a cyclic number.

It is not a de Polignac number, because 32113102121 - 218 = 32112839977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32113102121.

It is not an unprimeable number, because it can be changed into a prime (32113102127) 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, 553674146 + ... + 553674203.

It is an arithmetic number, because the mean of its divisors is an integer number (8305112625).

Almost surely, 232113102121 is an apocalyptic number.

It is an amenable number.

32113102121 is a deficient number, since it is larger than the sum of its proper divisors (1107348379).

32113102121 is a wasteful number, since it uses less digits than its factorization.

32113102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107348378.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 32113102121 its reverse (12120131123), we get a palindrome (44233233244).

The spelling of 32113102121 in words is "thirty-two billion, one hundred thirteen million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 29 1107348349 32113102121