1002111412 has 12 divisors (see below), whose sum is σ = 1753943940. Its totient is φ = 500984576.

The previous prime is 1002111361. The next prime is 1002111413. The reversal of 1002111412 is 2141112001.

It can be written as a sum of positive squares in 2 ways, for example, as 846460836 + 155650576 = 29094^2 + 12476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002111392 and 1002111401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002111413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25764 + ... + 51652.

It is an arithmetic number, because the mean of its divisors is an integer number (146161995).

Almost surely, 2^1002111412 is an apocalyptic number.

It is an amenable number.

1002111412 is a deficient number, since it is larger than the sum of its proper divisors (751832528).

1002111412 is a wasteful number, since it uses less digits than its factorization.

1002111412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35570 (or 35568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1002111412 is about 31656.1433532261. The cubic root of 1002111412 is about 1000.7033092402.

Adding to 1002111412 its reverse (2141112001), we get a palindrome (3143223413).

The spelling of 1002111412 in words is "one billion, two million, one hundred eleven thousand, four hundred twelve".