102231019998 has 48 divisors (see below), whose sum is σ = 229908959280. Its totient is φ = 34046640576.

The previous prime is 102231019993. The next prime is 102231020041. The reversal of 102231019998 is 899910132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231019993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455536 + ... + 641852.

It is an arithmetic number, because the mean of its divisors is an integer number (4789769985).

Almost surely, 2^102231019998 is an apocalyptic number.

102231019998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102231019998 is an abundant number, since it is smaller than the sum of its proper divisors (127677939282).

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

102231019998 is a wasteful number, since it uses less digits than its factorization.

102231019998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187463 (or 187451 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 102231019998 in words is "one hundred two billion, two hundred thirty-one million, nineteen thousand, nine hundred ninety-eight".