1010105421 has 16 divisors (see below), whose sum is σ = 1513470336. Its totient is φ = 594576576.

The previous prime is 1010105407. The next prime is 1010105423. The reversal of 1010105421 is 1245010101.

It is a happy number.

It is not a de Polignac number, because 1010105421 - 2⁶ = 1010105357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010105421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010105423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562150 + ... + 563943.

It is an arithmetic number, because the mean of its divisors is an integer number (94591896).

Almost surely, 2^1010105421 is an apocalyptic number.

It is an amenable number.

1010105421 is a deficient number, since it is larger than the sum of its proper divisors (503364915).

1010105421 is a wasteful number, since it uses less digits than its factorization.

1010105421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126132.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1010105421 is about 31782.1557009590. The cubic root of 1010105421 is about 1003.3571903271.

Adding to 1010105421 its reverse (1245010101), we get a palindrome (2255115522).

The spelling of 1010105421 in words is "one billion, ten million, one hundred five thousand, four hundred twenty-one".