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112021230031 = 232034827877
BaseRepresentation
bin110100001010011111…
…1000101000111001111
3101201010221201002201121
41220110333011013033
53313404413330111
6123243431421411
711043663513244
oct1502477050717
9351127632647
10112021230031
1143565078157
1219863824867
13a7431984c9
1455c98075cb
152da97a0871
hex1a14fc51cf

112021230031 has 4 divisors (see below), whose sum is σ = 112026081112. Its totient is φ = 112016378952.

The previous prime is 112021229993. The next prime is 112021230067. The reversal of 112021230031 is 130032120211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112021230031 is a prime.

It is a super-2 number, since 2×1120212300312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112021229987 and 112021230014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021230071) 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, 2390736 + ... + 2437141.

It is an arithmetic number, because the mean of its divisors is an integer number (28006520278).

Almost surely, 2112021230031 is an apocalyptic number.

112021230031 is a deficient number, since it is larger than the sum of its proper divisors (4851081).

112021230031 is an equidigital number, since it uses as much as digits as its factorization.

112021230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851080.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 112021230031 its reverse (130032120211), we get a palindrome (242053350242).

The spelling of 112021230031 in words is "one hundred twelve billion, twenty-one million, two hundred thirty thousand, thirty-one".

Divisors: 1 23203 4827877 112021230031