1020404311 has 8 divisors (see below), whose sum is σ = 1082769984. Its totient is φ = 958298880.

The previous prime is 1020404227. The next prime is 1020404377. The reversal of 1020404311 is 1134040201.

1020404311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020404311 - 2¹¹ = 1020402263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020404381) 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, 56950 + ... + 72691.

It is an arithmetic number, because the mean of its divisors is an integer number (135346248).

Almost surely, 2^1020404311 is an apocalyptic number.

1020404311 is a deficient number, since it is larger than the sum of its proper divisors (62365673).

1020404311 is a wasteful number, since it uses less digits than its factorization.

1020404311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130121.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1020404311 is about 31943.7679524504. The cubic root of 1020404311 is about 1006.7556948123.

Adding to 1020404311 its reverse (1134040201), we get a palindrome (2154444512).

The spelling of 1020404311 in words is "one billion, twenty million, four hundred four thousand, three hundred eleven".