103212511200 has 144 divisors (see below), whose sum is σ = 373285326960. Its totient is φ = 27523330560.

The previous prime is 103212511153. The next prime is 103212511229. The reversal of 103212511200 is 2115212301.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2367579 + ... + 2410778.

It is an arithmetic number, because the mean of its divisors is an integer number (2592259215).

Almost surely, 2^103212511200 is an apocalyptic number.

103212511200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103212511200 is an abundant number, since it is smaller than the sum of its proper divisors (270072815760).

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

103212511200 is a wasteful number, since it uses less digits than its factorization.

103212511200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778386 (or 4778367 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 103212511200 its reverse (2115212301), we get a palindrome (105327723501).

The spelling of 103212511200 in words is "one hundred three billion, two hundred twelve million, five hundred eleven thousand, two hundred".