101131420442 has 8 divisors (see below), whose sum is σ = 163366140756. Its totient is φ = 46676040192.

The previous prime is 101131420393. The next prime is 101131420519. The reversal of 101131420442 is 244024131101.

It can be written as a sum of positive squares in 2 ways, for example, as 78477859321 + 22653561121 = 280139^2 + 150511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944834983 + ... + 1944835034.

Almost surely, 2^101131420442 is an apocalyptic number.

101131420442 is a deficient number, since it is larger than the sum of its proper divisors (62234720314).

101131420442 is a wasteful number, since it uses less digits than its factorization.

101131420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889670032.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 101131420442 its reverse (244024131101), we get a palindrome (345155551543).

The spelling of 101131420442 in words is "one hundred one billion, one hundred thirty-one million, four hundred twenty thousand, four hundred forty-two".