101042409031 has 4 divisors (see below), whose sum is σ = 101043059992. Its totient is φ = 101041758072.

The previous prime is 101042408993. The next prime is 101042409047. The reversal of 101042409031 is 130904240101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 130904240101 = 10687 ⋅12248923.

It is a cyclic number.

It is not a de Polignac number, because 101042409031 - 2¹⁵ = 101042376263 is a prime.

It is a super-2 number, since 2×101042409031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101042408987 and 101042409005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101042409071) 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 3 ways as a sum of consecutive naturals, for example, 57796 + ... + 453238.

It is an arithmetic number, because the mean of its divisors is an integer number (25260764998).

Almost surely, 2^101042409031 is an apocalyptic number.

101042409031 is a deficient number, since it is larger than the sum of its proper divisors (650961).

101042409031 is an equidigital number, since it uses as much as digits as its factorization.

101042409031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650960.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 101042409031 its reverse (130904240101), we get a palindrome (231946649132).

The spelling of 101042409031 in words is "one hundred one billion, forty-two million, four hundred nine thousand, thirty-one".