11231001212087 has 2 divisors, whose sum is σ = 11231001212088. Its totient is φ = 11231001212086.

The previous prime is 11231001212083. The next prime is 11231001212141. The reversal of 11231001212087 is 78021210013211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11231001212087 - 2² = 11231001212083 is a prime.

It is a super-2 number, since 2×11231001212087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231001212083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615500606043 + 5615500606044.

It is an arithmetic number, because the mean of its divisors is an integer number (5615500606044).

Almost surely, 2^{11231001212087} is an apocalyptic number.

11231001212087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231001212087 is an equidigital number, since it uses as much as digits as its factorization.

11231001212087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 11231001212087 its reverse (78021210013211), we get a palindrome (89252211225298).

The spelling of 11231001212087 in words is "eleven trillion, two hundred thirty-one billion, one million, two hundred twelve thousand, eighty-seven".