1231102 has 8 divisors (see below), whose sum is σ = 1877112. Its totient is φ = 605400.

The previous prime is 1231099. The next prime is 1231127. The reversal of 1231102 is 2011321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231102² = 3031224268808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4924 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (234639).

2^1231102 is an apocalyptic number.

1231102 is a deficient number, since it is larger than the sum of its proper divisors (646010).

1231102 is a wasteful number, since it uses less digits than its factorization.

1231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1231102 is about 1109.5503593799. The cubic root of 1231102 is about 107.1761154741.

Adding to 1231102 its reverse (2011321), we get a palindrome (3242423).

It can be divided in two parts, 123 and 1102, that added together give a triangular number (1225 = T₄₉).

The spelling of 1231102 in words is "one million, two hundred thirty-one thousand, one hundred two".