1011012102 has 24 divisors (see below), whose sum is σ = 2191725120. Its totient is φ = 336819600.

The previous prime is 1011012061. The next prime is 1011012103. The reversal of 1011012102 is 2012101101.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20724 + ... + 49512.

It is an arithmetic number, because the mean of its divisors is an integer number (91321880).

Almost surely, 2^1011012102 is an apocalyptic number.

1011012102 is an abundant number, since it is smaller than the sum of its proper divisors (1180713018).

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

1011012102 is a wasteful number, since it uses less digits than its factorization.

1011012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30748 (or 30745 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1011012102 is about 31796.4164962028. The cubic root of 1011012102 is about 1003.6573084549.

Adding to 1011012102 its reverse (2012101101), we get a palindrome (3023113203).

The spelling of 1011012102 in words is "one billion, eleven million, twelve thousand, one hundred two".