102311000 has 128 divisors (see below), whose sum is σ = 266872320. Its totient is φ = 36400000.

The previous prime is 102310987. The next prime is 102311003. The reversal of 102311000 is 113201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780935 + ... + 781065.

It is an arithmetic number, because the mean of its divisors is an integer number (2084940).

Almost surely, 2^102311000 is an apocalyptic number.

102311000 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 102311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133436160).

102311000 is an abundant number, since it is smaller than the sum of its proper divisors (164561320).

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

102311000 is a wasteful number, since it uses less digits than its factorization.

102311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 102311000 is about 10114.8900142315. The cubic root of 102311000 is about 467.7072584216.

Adding to 102311000 its reverse (113201), we get a palindrome (102424201).

The spelling of 102311000 in words is "one hundred two million, three hundred eleven thousand".