101062421 has 4 divisors (see below), whose sum is σ = 102719244. Its totient is φ = 99405600.

The previous prime is 101062393. The next prime is 101062471. The reversal of 101062421 is 124260101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 99400900 = 1289^2 + 9970^2 .

It is not a de Polignac number, because 101062421 - 2¹⁰ = 101061397 is a prime.

It is a super-3 number, since 3×101062421³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101062421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101062471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828320 + ... + 828441.

It is an arithmetic number, because the mean of its divisors is an integer number (25679811).

Almost surely, 2^101062421 is an apocalyptic number.

It is an amenable number.

101062421 is a deficient number, since it is larger than the sum of its proper divisors (1656823).

101062421 is an equidigital number, since it uses as much as digits as its factorization.

101062421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656822.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101062421 is about 10052.9807022594. The cubic root of 101062421 is about 465.7968700295.

The spelling of 101062421 in words is "one hundred one million, sixty-two thousand, four hundred twenty-one".