1021430001 has 4 divisors (see below), whose sum is σ = 1361906672. Its totient is φ = 680953332.

The previous prime is 1021429979. The next prime is 1021430071. The reversal of 1021430001 is 1000341201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1021430001 - 2¹⁸ = 1021167857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021430071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170238331 + ... + 170238336.

It is an arithmetic number, because the mean of its divisors is an integer number (340476668).

Almost surely, 2^1021430001 is an apocalyptic number.

It is an amenable number.

1021430001 is a deficient number, since it is larger than the sum of its proper divisors (340476671).

1021430001 is an equidigital number, since it uses as much as digits as its factorization.

1021430001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340476670.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1021430001 is about 31959.8185382833. The cubic root of 1021430001 is about 1007.0929054131.

Adding to 1021430001 its reverse (1000341201), we get a palindrome (2021771202).

The spelling of 1021430001 in words is "one billion, twenty-one million, four hundred thirty thousand, one".