1020404211 has 16 divisors (see below), whose sum is σ = 1391170560. Its totient is φ = 665121600.

The previous prime is 1020404191. The next prime is 1020404221. The reversal of 1020404211 is 1124040201.

It is not a de Polignac number, because 1020404211 - 2⁷ = 1020404083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020404221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511 + ... + 45311.

It is an arithmetic number, because the mean of its divisors is an integer number (86948160).

Almost surely, 2^1020404211 is an apocalyptic number.

1020404211 is a deficient number, since it is larger than the sum of its proper divisors (370766349).

1020404211 is a wasteful number, since it uses less digits than its factorization.

1020404211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41986.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1020404211 is about 31943.7663871999. The cubic root of 1020404211 is about 1006.7556619248.

Adding to 1020404211 its reverse (1124040201), we get a palindrome (2144444412).

The spelling of 1020404211 in words is "one billion, twenty million, four hundred four thousand, two hundred eleven".