15342542252101 has 2 divisors, whose sum is σ = 15342542252102. Its totient is φ = 15342542252100.

The previous prime is 15342542252099. The next prime is 15342542252113. The reversal of 15342542252101 is 10125224524351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10060124932900 + 5282417319201 = 3171770^2 + 2298351^2 .

It is a cyclic number.

It is not a de Polignac number, because 15342542252101 - 2¹ = 15342542252099 is a prime.

Together with 15342542252099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15342542252131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7671271126050 + 7671271126051.

It is an arithmetic number, because the mean of its divisors is an integer number (7671271126051).

Almost surely, 2^{15342542252101} is an apocalyptic number.

It is an amenable number.

15342542252101 is a deficient number, since it is larger than the sum of its proper divisors (1).

15342542252101 is an equidigital number, since it uses as much as digits as its factorization.

15342542252101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 15342542252101 its reverse (10125224524351), we get a palindrome (25467766776452).

The spelling of 15342542252101 in words is "fifteen trillion, three hundred forty-two billion, five hundred forty-two million, two hundred fifty-two thousand, one hundred one".