1023111404 has 12 divisors (see below), whose sum is σ = 2046222864. Its totient is φ = 438476304.

The previous prime is 1023111343. The next prime is 1023111409. The reversal of 1023111404 is 4041113201.

It is a happy number.

1023111404 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1023111409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18269819 + ... + 18269874.

It is an arithmetic number, because the mean of its divisors is an integer number (170518572).

Almost surely, 2^1023111404 is an apocalyptic number.

1023111404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1023111404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023111404 is a wasteful number, since it uses less digits than its factorization.

1023111404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36539704 (or 36539702 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1023111404 is about 31986.1126740966. The cubic root of 1023111404 is about 1007.6452032488.

Adding to 1023111404 its reverse (4041113201), we get a palindrome (5064224605).

The spelling of 1023111404 in words is "one billion, twenty-three million, one hundred eleven thousand, four hundred four".