1020313200 has 60 divisors (see below), whose sum is σ = 3268407128. Its totient is φ = 272083200.

The previous prime is 1020313187. The next prime is 1020313223. The reversal of 1020313200 is 23130201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423931 + ... + 426330.

Almost surely, 2^1020313200 is an apocalyptic number.

1020313200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020313200 is an abundant number, since it is smaller than the sum of its proper divisors (2248093928).

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

1020313200 is a wasteful number, since it uses less digits than its factorization.

1020313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850282 (or 850271 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1020313200 is about 31942.3418051964. The cubic root of 1020313200 is about 1006.7257298114.

Adding to 1020313200 its reverse (23130201), we get a palindrome (1043443401).

The spelling of 1020313200 in words is "one billion, twenty million, three hundred thirteen thousand, two hundred".