11213112012251 has 2 divisors, whose sum is σ = 11213112012252. Its totient is φ = 11213112012250.

The previous prime is 11213112012241. The next prime is 11213112012373. The reversal of 11213112012251 is 15221021131211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11213112012251 - 2⁴² = 6815065501147 is a prime.

It is not a weakly prime, because it can be changed into another prime (11213112012241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606556006125 + 5606556006126.

It is an arithmetic number, because the mean of its divisors is an integer number (5606556006126).

Almost surely, 2^{11213112012251} is an apocalyptic number.

11213112012251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213112012251 is an equidigital number, since it uses as much as digits as its factorization.

11213112012251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 11213112012251 its reverse (15221021131211), we get a palindrome (26434133143462).

The spelling of 11213112012251 in words is "eleven trillion, two hundred thirteen billion, one hundred twelve million, twelve thousand, two hundred fifty-one".