1023211200 has 168 divisors, whose sum is σ = 3662354880. Its totient is φ = 248038400.

The previous prime is 1023211117. The next prime is 1023211213. The reversal of 1023211200 is 21123201.

It is a super-2 number, since 2×1023211200² = 2093922319610880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43111 + ... + 62489.

Almost surely, 2^1023211200 is an apocalyptic number.

1023211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831177440).

1023211200 is an abundant number, since it is smaller than the sum of its proper divisors (2639143680).

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

1023211200 is a wasteful number, since it uses less digits than its factorization.

1023211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415 (or 19400 counting only the distinct ones).

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

The square root of 1023211200 is about 31987.6726255600. The cubic root of 1023211200 is about 1007.6779646506.

Adding to 1023211200 its reverse (21123201), we get a palindrome (1044334401).

The spelling of 1023211200 in words is "one billion, twenty-three million, two hundred eleven thousand, two hundred".