11312145451 has 2 divisors, whose sum is σ = 11312145452. Its totient is φ = 11312145450.

The previous prime is 11312145443. The next prime is 11312145479. The reversal of 11312145451 is 15454121311.

It is a happy number.

It is an a-pointer prime, because the next prime (11312145479) can be obtained adding 11312145451 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11312145451 - 2³ = 11312145443 is a prime.

It is not a weakly prime, because it can be changed into another prime (11312140451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656072725 + 5656072726.

It is an arithmetic number, because the mean of its divisors is an integer number (5656072726).

Almost surely, 2^11312145451 is an apocalyptic number.

11312145451 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312145451 is an equidigital number, since it uses as much as digits as its factorization.

11312145451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 28.

Adding to 11312145451 its reverse (15454121311), we get a palindrome (26766266762).

The spelling of 11312145451 in words is "eleven billion, three hundred twelve million, one hundred forty-five thousand, four hundred fifty-one".