102001131000 has 192 divisors, whose sum is σ = 346082742720. Its totient is φ = 27096249600.

The previous prime is 102001130941. The next prime is 102001131017. The reversal of 102001131000 is 131100201.

It is a super-2 number, since 2×102001131000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2345454 + ... + 2388546.

It is an arithmetic number, because the mean of its divisors is an integer number (1802514285).

Almost surely, 2^102001131000 is an apocalyptic number.

102001131000 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 102001131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173041371360).

102001131000 is an abundant number, since it is smaller than the sum of its proper divisors (244081611720).

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

102001131000 is a wasteful number, since it uses less digits than its factorization.

102001131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43383 (or 43366 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 102001131000 its reverse (131100201), we get a palindrome (102132231201).

The spelling of 102001131000 in words is "one hundred two billion, one million, one hundred thirty-one thousand".