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31322300111 = 239131055649
BaseRepresentation
bin11101001010111101…
…000101111011001111
32222211220102201010022
4131022331011323033
51003122002100421
622220025332355
72156124105134
oct351275057317
988756381108
1031322300111
1112313692743
1260a19370bb
132c5230a3bb
141731cd258b
15c34c717ab
hex74af45ecf

31322300111 has 4 divisors (see below), whose sum is σ = 31453356000. Its totient is φ = 31191244224.

The previous prime is 31322300081. The next prime is 31322300123. The reversal of 31322300111 is 11100322313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11100322313 = 75553146921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31322300111 is a prime.

It is a super-2 number, since 2×313223001112 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31322300111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322308111) 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, 65527586 + ... + 65528063.

It is an arithmetic number, because the mean of its divisors is an integer number (7863339000).

Almost surely, 231322300111 is an apocalyptic number.

31322300111 is a deficient number, since it is larger than the sum of its proper divisors (131055889).

31322300111 is a wasteful number, since it uses less digits than its factorization.

31322300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131055888.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31322300111 its reverse (11100322313), we get a palindrome (42422622424).

The spelling of 31322300111 in words is "thirty-one billion, three hundred twenty-two million, three hundred thousand, one hundred eleven".

Divisors: 1 239 131055649 31322300111