101301021 has 12 divisors (see below), whose sum is σ = 146693820. Its totient is φ = 67363200.

The previous prime is 101301017. The next prime is 101301023. The reversal of 101301021 is 120103101.

It can be written as a sum of positive squares in 2 ways, for example, as 63920025 + 37380996 = 7995^2 + 6114^2 .

It is not a de Polignac number, because 101301021 - 2² = 101301017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101300994 and 101301012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101301023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10426 + ... + 17643.

It is an arithmetic number, because the mean of its divisors is an integer number (12224485).

Almost surely, 2^101301021 is an apocalyptic number.

It is an amenable number.

101301021 is a deficient number, since it is larger than the sum of its proper divisors (45392799).

101301021 is a wasteful number, since it uses less digits than its factorization.

101301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28476 (or 28473 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 101301021 is about 10064.8408333167. The cubic root of 101301021 is about 466.1631511958.

Adding to 101301021 its reverse (120103101), we get a palindrome (221404122).

It can be divided in two parts, 10 and 1301021, that added together give a palindrome (1301031).

The spelling of 101301021 in words is "one hundred one million, three hundred one thousand, twenty-one".