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20230110121 = 1337197321317
BaseRepresentation
bin10010110101110011…
…101111101110101001
31221012212112001222211
4102311303233232221
5312412402010441
613143225245121
71314215045614
oct226563575651
957185461884
1020230110121
118641408181
123b070337a1
131ba5275080
14d9caa517b
157d6071a81
hex4b5cefba9

20230110121 has 16 divisors (see below), whose sum is σ = 22387481424. Its totient is φ = 18159185664.

The previous prime is 20230110119. The next prime is 20230110139. The reversal of 20230110121 is 12101103202.

It can be written as a sum of positive squares in 8 ways, for example, as 1403251600 + 18826858521 = 37460^2 + 137211^2 .

It is a cyclic number.

It is not a de Polignac number, because 20230110121 - 21 = 20230110119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230110151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938355 + ... + 959671.

It is an arithmetic number, because the mean of its divisors is an integer number (1399217589).

Almost surely, 220230110121 is an apocalyptic number.

It is an amenable number.

20230110121 is a deficient number, since it is larger than the sum of its proper divisors (2157371303).

20230110121 is a wasteful number, since it uses less digits than its factorization.

20230110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23340.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20230110121 its reverse (12101103202), we get a palindrome (32331213323).

The spelling of 20230110121 in words is "twenty billion, two hundred thirty million, one hundred ten thousand, one hundred twenty-one".

Divisors: 1 13 37 481 1973 21317 25649 73001 277121 788729 949013 10253477 42058441 546759733 1556162317 20230110121