1200102512 has 60 divisors (see below), whose sum is σ = 2762457120. Its totient is φ = 503371008.

The previous prime is 1200102499. The next prime is 1200102517. The reversal of 1200102512 is 2152010021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200102517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20564 + ... + 53132.

It is an arithmetic number, because the mean of its divisors is an integer number (46040952).

Almost surely, 2^1200102512 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 1200102512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381228560).

1200102512 is an abundant number, since it is smaller than the sum of its proper divisors (1562354608).

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

1200102512 is a wasteful number, since it uses less digits than its factorization.

1200102512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32638 (or 32625 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1200102512 is about 34642.4957530487. The cubic root of 1200102512 is about 1062.6888281141.

Adding to 1200102512 its reverse (2152010021), we get a palindrome (3352112533).

The spelling of 1200102512 in words is "one billion, two hundred million, one hundred two thousand, five hundred twelve".