1002343212 has 144 divisors (see below), whose sum is σ = 2866805760. Its totient is φ = 293155200.

The previous prime is 1002343207. The next prime is 1002343219. The reversal of 1002343212 is 2123432001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1002343219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 855387 + ... + 856557.

Almost surely, 2^1002343212 is an apocalyptic number.

1002343212 is a gapful number since it is divisible by the number (12) 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 1002343212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433402880).

1002343212 is an abundant number, since it is smaller than the sum of its proper divisors (1864462548).

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

1002343212 is a wasteful number, since it uses less digits than its factorization.

1002343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002343212 is about 31659.8043582079. The cubic root of 1002343212 is about 1000.7804613882.

Adding to 1002343212 its reverse (2123432001), we get a palindrome (3125775213).

It can be divided in two parts, 10023 and 43212, that added together give a palindrome (53235).

The spelling of 1002343212 in words is "one billion, two million, three hundred forty-three thousand, two hundred twelve".