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31423101041 = 223140910767
BaseRepresentation
bin11101010000111101…
…100111100001110001
310000002221002221000002
4131100331213201301
51003323303213131
622234030035345
72161456644323
oct352075474161
9100087087002
1031423101041
11123655809a2
12610b648b55
132c6a171617
141741451613
15c3da336cb
hex750f67871

31423101041 has 4 divisors (see below), whose sum is σ = 31564012032. Its totient is φ = 31282190052.

The previous prime is 31423101023. The next prime is 31423101071. The reversal of 31423101041 is 14010132413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31423101041 is a prime.

It is a super-2 number, since 2×314231010412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70455161 + ... + 70455606.

It is an arithmetic number, because the mean of its divisors is an integer number (7891003008).

Almost surely, 231423101041 is an apocalyptic number.

It is an amenable number.

31423101041 is a deficient number, since it is larger than the sum of its proper divisors (140910991).

31423101041 is a wasteful number, since it uses less digits than its factorization.

31423101041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140910990.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31423101041 its reverse (14010132413), we get a palindrome (45433233454).

The spelling of 31423101041 in words is "thirty-one billion, four hundred twenty-three million, one hundred one thousand, forty-one".

Divisors: 1 223 140910767 31423101041