103212001998 has 24 divisors (see below), whose sum is σ = 255572576688. Its totient is φ = 29489143392.

The previous prime is 103212001967. The next prime is 103212002039. The reversal of 103212001998 is 899100212301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409571311 + ... + 409571562.

It is an arithmetic number, because the mean of its divisors is an integer number (10648857362).

Almost surely, 2^103212001998 is an apocalyptic number.

103212001998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

103212001998 is an abundant number, since it is smaller than the sum of its proper divisors (152360574690).

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

103212001998 is a wasteful number, since it uses less digits than its factorization.

103212001998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819142888 (or 819142885 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 103212001998 in words is "one hundred three billion, two hundred twelve million, one thousand, nine hundred ninety-eight".