1231012102 has 16 divisors (see below), whose sum is σ = 1865458512. Its totient is φ = 609203200.

The previous prime is 1231012091. The next prime is 1231012103. The reversal of 1231012102 is 2012101321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231012103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340818 + ... + 344410.

It is an arithmetic number, because the mean of its divisors is an integer number (116591157).

Almost surely, 2^1231012102 is an apocalyptic number.

1231012102 is a deficient number, since it is larger than the sum of its proper divisors (634446410).

1231012102 is a wasteful number, since it uses less digits than its factorization.

1231012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1231012102 is about 35085.7820491435. The cubic root of 1231012102 is about 1071.7350665888.

Adding to 1231012102 its reverse (2012101321), we get a palindrome (3243113423).

The spelling of 1231012102 in words is "one billion, two hundred thirty-one million, twelve thousand, one hundred two".