11312003147 has 2 divisors, whose sum is σ = 11312003148. Its totient is φ = 11312003146.

The previous prime is 11312003069. The next prime is 11312003149. The reversal of 11312003147 is 74130021311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11312003147 - 2¹⁸ = 11311741003 is a prime.

It is a super-2 number, since 2×11312003147² (a number of 21 digits) contains 22 as substring.

Together with 11312003149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11312003149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656001573 + 5656001574.

It is an arithmetic number, because the mean of its divisors is an integer number (5656001574).

Almost surely, 2^11312003147 is an apocalyptic number.

11312003147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312003147 is an equidigital number, since it uses as much as digits as its factorization.

11312003147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 11312003147 its reverse (74130021311), we get a palindrome (85442024458).

The spelling of 11312003147 in words is "eleven billion, three hundred twelve million, three thousand, one hundred forty-seven".