101156431241242 has 16 divisors (see below), whose sum is σ = 163406860885800. Its totient is φ = 46687492760832.

The previous prime is 101156431241237. The next prime is 101156431241249. The reversal of 101156431241242 is 242142134651101.

It can be written as a sum of positive squares in 4 ways, for example, as 40163158428481 + 60993272812761 = 6337441^2 + 7809819^2 .

It is not an unprimeable number, because it can be changed into a prime (101156431241249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900134 + ... + 17919982.

Almost surely, 2^{101156431241242} is an apocalyptic number.

101156431241242 is a deficient number, since it is larger than the sum of its proper divisors (62250429644558).

101156431241242 is a wasteful number, since it uses less digits than its factorization.

101156431241242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574097.

The product of its (nonzero) digits is 46080, while the sum is 37.

Adding to 101156431241242 its reverse (242142134651101), we get a palindrome (343298565892343).

The spelling of 101156431241242 in words is "one hundred one trillion, one hundred fifty-six billion, four hundred thirty-one million, two hundred forty-one thousand, two hundred forty-two".