101421204231 has 16 divisors (see below), whose sum is σ = 138291999840. Its totient is φ = 66091758720.

The previous prime is 101421204191. The next prime is 101421204259. The reversal of 101421204231 is 132402124101.

It is not a de Polignac number, because 101421204231 - 2¹⁸ = 101420942087 is a prime.

It is a super-2 number, since 2×101421204231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101421204198 and 101421204207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421204331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1142860 + ... + 1228401.

It is an arithmetic number, because the mean of its divisors is an integer number (8643249990).

Almost surely, 2^101421204231 is an apocalyptic number.

101421204231 is a deficient number, since it is larger than the sum of its proper divisors (36870795609).

101421204231 is a wasteful number, since it uses less digits than its factorization.

101421204231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371586.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 101421204231 its reverse (132402124101), we get a palindrome (233823328332).

The spelling of 101421204231 in words is "one hundred one billion, four hundred twenty-one million, two hundred four thousand, two hundred thirty-one".