421003130 has 16 divisors (see below), whose sum is σ = 802382760. Its totient is φ = 158495232.

The previous prime is 421003123. The next prime is 421003133. The reversal of 421003130 is 31300124.

It can be written as a sum of positive squares in 4 ways, for example, as 319658641 + 101344489 = 17879^2 + 10067^2 .

It is not an unprimeable number, because it can be changed into a prime (421003133) 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, 1238075 + ... + 1238414.

Almost surely, 2^421003130 is an apocalyptic number.

421003130 is a deficient number, since it is larger than the sum of its proper divisors (381379630).

421003130 is a wasteful number, since it uses less digits than its factorization.

421003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476513.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 421003130 is about 20518.3608019744. The cubic root of 421003130 is about 749.4829799652.

Adding to 421003130 its reverse (31300124), we get a palindrome (452303254).

The spelling of 421003130 in words is "four hundred twenty-one million, three thousand, one hundred thirty".