102121323000 has 128 divisors (see below), whose sum is σ = 318750120000. Its totient is φ = 27221107200.

The previous prime is 102121322993. The next prime is 102121323049. The reversal of 102121323000 is 323121201.

It is a super-2 number, since 2×102121323000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9321526 + ... + 9332474.

Almost surely, 2^102121323000 is an apocalyptic number.

102121323000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102121323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159375060000).

102121323000 is an abundant number, since it is smaller than the sum of its proper divisors (216628797000).

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

102121323000 is a wasteful number, since it uses less digits than its factorization.

102121323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14082 (or 14068 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102121323000 its reverse (323121201), we get a palindrome (102444444201).

The spelling of 102121323000 in words is "one hundred two billion, one hundred twenty-one million, three hundred twenty-three thousand".