202311012 has 48 divisors (see below), whose sum is σ = 498274560. Its totient is φ = 63711648.

The previous prime is 202310987. The next prime is 202311037. The reversal of 202311012 is 210113202.

It is an interprime number because it is at equal distance from previous prime (202310987) and next prime (202311037).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100003 + ... + 102005.

It is an arithmetic number, because the mean of its divisors is an integer number (10380720).

Almost surely, 2^202311012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202311012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249137280).

202311012 is an abundant number, since it is smaller than the sum of its proper divisors (295963548).

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

202311012 is a wasteful number, since it uses less digits than its factorization.

202311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472 (or 2470 counting only the distinct ones).

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

The square root of 202311012 is about 14223.6075592657. The cubic root of 202311012 is about 587.0474070913.

Adding to 202311012 its reverse (210113202), we get a palindrome (412424214).

The spelling of 202311012 in words is "two hundred two million, three hundred eleven thousand, twelve".