101235240137 has 4 divisors (see below), whose sum is σ = 101600710596. Its totient is φ = 100869769680.

The previous prime is 101235240109. The next prime is 101235240143. The reversal of 101235240137 is 731042532101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44776252816 + 56458987321 = 211604^2 + 237611^2 .

It is a cyclic number.

It is not a de Polignac number, because 101235240137 - 2¹² = 101235236041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101235240437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182734814 + ... + 182735367.

It is an arithmetic number, because the mean of its divisors is an integer number (25400177649).

Almost surely, 2^101235240137 is an apocalyptic number.

It is an amenable number.

101235240137 is a deficient number, since it is larger than the sum of its proper divisors (365470459).

101235240137 is an equidigital number, since it uses as much as digits as its factorization.

101235240137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365470458.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 101235240137 its reverse (731042532101), we get a palindrome (832277772238).

The spelling of 101235240137 in words is "one hundred one billion, two hundred thirty-five million, two hundred forty thousand, one hundred thirty-seven".