11542101251 has 2 divisors, whose sum is σ = 11542101252. Its totient is φ = 11542101250.

The previous prime is 11542101203. The next prime is 11542101253. The reversal of 11542101251 is 15210124511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11542101251 is a prime.

It is a Sophie Germain prime.

Together with 11542101253, 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 (11542101253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771050625 + 5771050626.

It is an arithmetic number, because the mean of its divisors is an integer number (5771050626).

Almost surely, 2^11542101251 is an apocalyptic number.

11542101251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542101251 is an equidigital number, since it uses as much as digits as its factorization.

11542101251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 11542101251 its reverse (15210124511), we get a palindrome (26752225762).

The spelling of 11542101251 in words is "eleven billion, five hundred forty-two million, one hundred one thousand, two hundred fifty-one".