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1130031431 is a prime number
BaseRepresentation
bin100001101011010…
…1110100101000111
32220202100112200222
41003112232211013
54303242001211
6304044254555
740001052164
oct10326564507
92822315628
101130031431
1152a967381
1227654145b
13150167069
14aa11906b
15693191db
hex435ae947

1130031431 has 2 divisors, whose sum is σ = 1130031432. Its totient is φ = 1130031430.

The previous prime is 1130031379. The next prime is 1130031451. The reversal of 1130031431 is 1341300311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1130031431 - 218 = 1129769287 is a prime.

It is a super-2 number, since 2×11300314312 = 2553942070095815522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130031451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565015715 + 565015716.

It is an arithmetic number, because the mean of its divisors is an integer number (565015716).

Almost surely, 21130031431 is an apocalyptic number.

1130031431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130031431 is an equidigital number, since it uses as much as digits as its factorization.

1130031431 is an evil number, because the sum of its binary digits is even.

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

The square root of 1130031431 is about 33615.9401326216. The cubic root of 1130031431 is about 1041.5900944190.

Adding to 1130031431 its reverse (1341300311), we get a palindrome (2471331742).

The spelling of 1130031431 in words is "one billion, one hundred thirty million, thirty-one thousand, four hundred thirty-one".