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31040250532111 = 412053565165257
BaseRepresentation
bin1110000111011000111110…
…00110110101000100001111
311001220102022102121001220201
413003230133012311010033
513032030413114011421
6150003405542154331
76352404226125322
oct703543706650417
9131812272531821
1031040250532111
119988107231517
1235939851229a7
131442110657ca2
147944db3787b9
1538c665013b91
hex1c3b1f1b510f

31040250532111 has 16 divisors (see below), whose sum is σ = 31818935217888. Its totient is φ = 30262600512000.

The previous prime is 31040250531959. The next prime is 31040250532133. The reversal of 31040250532111 is 11123505204013.

It is a cyclic number.

It is not a de Polignac number, because 31040250532111 - 221 = 31040248434959 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 31040250532111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040250532171) 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, 475628995 + ... + 475694251.

It is an arithmetic number, because the mean of its divisors is an integer number (1988683451118).

Almost surely, 231040250532111 is an apocalyptic number.

31040250532111 is a deficient number, since it is larger than the sum of its proper divisors (778684685777).

31040250532111 is a wasteful number, since it uses less digits than its factorization.

31040250532111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73002.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 31040250532111 its reverse (11123505204013), we get a palindrome (42163755736124).

The spelling of 31040250532111 in words is "thirty-one trillion, forty billion, two hundred fifty million, five hundred thirty-two thousand, one hundred eleven".

Divisors: 1 41 2053 5651 65257 84173 231691 2675537 11601503 133972621 368767307 475661623 5492877461 15119459587 757079281271 31040250532111