101242357 has 2 divisors, whose sum is σ = 101242358. Its totient is φ = 101242356.

The previous prime is 101242319. The next prime is 101242363. The reversal of 101242357 is 753242101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98287396 + 2954961 = 9914^2 + 1719^2 .

It is an emirp because it is prime and its reverse (753242101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101242357 - 2¹¹ = 101240309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101242367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50621178 + 50621179.

It is an arithmetic number, because the mean of its divisors is an integer number (50621179).

Almost surely, 2^101242357 is an apocalyptic number.

It is an amenable number.

101242357 is a deficient number, since it is larger than the sum of its proper divisors (1).

101242357 is an equidigital number, since it uses as much as digits as its factorization.

101242357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 101242357 is about 10061.9261078583. The cubic root of 101242357 is about 466.0731479051.

Adding to 101242357 its reverse (753242101), we get a palindrome (854484458).

The spelling of 101242357 in words is "one hundred one million, two hundred forty-two thousand, three hundred fifty-seven".