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2023011231213 = 37195070203587
BaseRepresentation
bin11101011100000100110…
…111011010010111101101
321011101202010112111212210
4131130010313122113231
5231121111333344323
64145205235321033
7266105050512510
oct35340467322755
97141663474783
102023011231213
1170aa55111445
122880a6450179
131189cca5660b
146dcb2a62d77
15379532aa293
hex1d704dda5ed

2023011231213 has 16 divisors (see below), whose sum is σ = 3244930296320. Its totient is φ = 1095163974576.

The previous prime is 2023011231167. The next prime is 2023011231229. The reversal of 2023011231213 is 3121321103202.

It is not a de Polignac number, because 2023011231213 - 26 = 2023011231149 is a prime.

It is a super-2 number, since 2×20230112312132 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 2023011231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023011231113) 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, 2535101395 + ... + 2535102192.

It is an arithmetic number, because the mean of its divisors is an integer number (202808143520).

Almost surely, 22023011231213 is an apocalyptic number.

It is an amenable number.

2023011231213 is a deficient number, since it is larger than the sum of its proper divisors (1221919065107).

2023011231213 is a wasteful number, since it uses less digits than its factorization.

2023011231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070203616.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2023011231213 its reverse (3121321103202), we get a palindrome (5144332334415).

The spelling of 2023011231213 in words is "two trillion, twenty-three billion, eleven million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 7 19 21 57 133 399 5070203587 15210610761 35491425109 96333868153 106474275327 289001604459 674337077071 2023011231213