102811002 has 64 divisors (see below), whose sum is σ = 250159104. Its totient is φ = 27498240.

The previous prime is 102811001. The next prime is 102811103. The reversal of 102811002 is 200118201.

It is not an unprimeable number, because it can be changed into a prime (102811001) 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, 221823 + ... + 222285.

It is an arithmetic number, because the mean of its divisors is an integer number (3908736).

Almost surely, 2^102811002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102811002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125079552).

102811002 is an abundant number, since it is smaller than the sum of its proper divisors (147348102).

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

102811002 is a wasteful number, since it uses less digits than its factorization.

102811002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 102811002 is about 10139.5760266394. The cubic root of 102811002 is about 468.4679281453.

Adding to 102811002 its reverse (200118201), we get a palindrome (302929203).

The spelling of 102811002 in words is "one hundred two million, eight hundred eleven thousand, two".