101421031 has 8 divisors (see below), whose sum is σ = 113039280. Its totient is φ = 90430848.

The previous prime is 101421029. The next prime is 101421043. The reversal of 101421031 is 130124101.

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

It is a cyclic number.

It is not a de Polignac number, because 101421031 - 2¹ = 101421029 is a prime.

It is a super-2 number, since 2×101421031² = 20572451058205922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421631) 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, 156676 + ... + 157321.

It is an arithmetic number, because the mean of its divisors is an integer number (14129910).

Almost surely, 2^101421031 is an apocalyptic number.

101421031 is a deficient number, since it is larger than the sum of its proper divisors (11618249).

101421031 is a wasteful number, since it uses less digits than its factorization.

101421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314033.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 101421031 is about 10070.8009115462. The cubic root of 101421031 is about 466.3471643532.

Adding to 101421031 its reverse (130124101), we get a palindrome (231545132).

The spelling of 101421031 in words is "one hundred one million, four hundred twenty-one thousand, thirty-one".