1020010421 has 8 divisors (see below), whose sum is σ = 1136854080. Its totient is φ = 909482688.

The previous prime is 1020010393. The next prime is 1020010441. The reversal of 1020010421 is 1240100201.

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 1020010421 - 2⁶ = 1020010357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010441) 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, 1578641 + ... + 1579286.

It is an arithmetic number, because the mean of its divisors is an integer number (142106760).

Almost surely, 2^1020010421 is an apocalyptic number.

It is an amenable number.

1020010421 is a deficient number, since it is larger than the sum of its proper divisors (116843659).

1020010421 is a wasteful number, since it uses less digits than its factorization.

1020010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157963.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020010421 is about 31937.6019920094. The cubic root of 1020010421 is about 1006.6261376580.

Adding to 1020010421 its reverse (1240100201), we get a palindrome (2260110622).

The spelling of 1020010421 in words is "one billion, twenty million, ten thousand, four hundred twenty-one".