1023211144 has 16 divisors (see below), whose sum is σ = 1963138320. Its totient is φ = 499707600.

The previous prime is 1023211117. The next prime is 1023211213. The reversal of 1023211144 is 4411123201.

It is a super-2 number, since 2×1023211144² = 2093922090411577472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486882 + ... + 1487569.

It is an arithmetic number, because the mean of its divisors is an integer number (122696145).

Almost surely, 2^1023211144 is an apocalyptic number.

It is an amenable number.

1023211144 is a deficient number, since it is larger than the sum of its proper divisors (939927176).

1023211144 is a wasteful number, since it uses less digits than its factorization.

1023211144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974500 (or 2974496 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1023211144 is about 31987.6717502228. The cubic root of 1023211144 is about 1007.6779462673.

Adding to 1023211144 its reverse (4411123201), we get a palindrome (5434334345).

The spelling of 1023211144 in words is "one billion, twenty-three million, two hundred eleven thousand, one hundred forty-four".