1040020311 has 8 divisors (see below), whose sum is σ = 1512756864. Its totient is φ = 630315320.

The previous prime is 1040020307. The next prime is 1040020337. The reversal of 1040020311 is 1130200401.

It is a happy number.

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 1040020311 - 2² = 1040020307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040020351) 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, 15757851 + ... + 15757916.

It is an arithmetic number, because the mean of its divisors is an integer number (189094608).

Almost surely, 2^1040020311 is an apocalyptic number.

1040020311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1040020311 is a deficient number, since it is larger than the sum of its proper divisors (472736553).

1040020311 is a wasteful number, since it uses less digits than its factorization.

1040020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31515781.

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

The square root of 1040020311 is about 32249.3459003435. The cubic root of 1040020311 is about 1013.1659993800.

Adding to 1040020311 its reverse (1130200401), we get a palindrome (2170220712).

The spelling of 1040020311 in words is "one billion, forty million, twenty thousand, three hundred eleven".