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1230412031 is a prime number
BaseRepresentation
bin100100101010110…
…1001100011111111
310011202020101222222
41021111221203333
510004441141111
6322031555555
742330221042
oct11125514377
93152211888
101230412031
11581598852
122a408bbbb
13167bb1b74
14b95a8c59
15730467db
hex495698ff

1230412031 has 2 divisors, whose sum is σ = 1230412032. Its totient is φ = 1230412030.

The previous prime is 1230412021. The next prime is 1230412033. The reversal of 1230412031 is 1302140321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230412031 - 26 = 1230411967 is a prime.

It is a super-2 number, since 2×12304120312 = 3027827532059089922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1230412033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230412033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615206015 + 615206016.

It is an arithmetic number, because the mean of its divisors is an integer number (615206016).

Almost surely, 21230412031 is an apocalyptic number.

1230412031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230412031 is an equidigital number, since it uses as much as digits as its factorization.

1230412031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1230412031 is about 35077.2295228685. The cubic root of 1230412031 is about 1071.5608950924.

Adding to 1230412031 its reverse (1302140321), we get a palindrome (2532552352).

The spelling of 1230412031 in words is "one billion, two hundred thirty million, four hundred twelve thousand, thirty-one".