1102123012 has 6 divisors (see below), whose sum is σ = 1928715278. Its totient is φ = 551061504.

The previous prime is 1102123007. The next prime is 1102123019. The reversal of 1102123012 is 2103212011.

It can be written as a sum of positive squares in only one way, i.e., 915909696 + 186213316 = 30264^2 + 13646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1102122983 and 1102123001.

It is not an unprimeable number, because it can be changed into a prime (1102123019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137765373 + ... + 137765380.

Almost surely, 2^1102123012 is an apocalyptic number.

It is an amenable number.

1102123012 is a deficient number, since it is larger than the sum of its proper divisors (826592266).

1102123012 is a wasteful number, since it uses less digits than its factorization.

1102123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275530757 (or 275530755 counting only the distinct ones).

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

The square root of 1102123012 is about 33198.2380857780. The cubic root of 1102123012 is about 1032.9437926326.

Adding to 1102123012 its reverse (2103212011), we get a palindrome (3205335023).

The spelling of 1102123012 in words is "one billion, one hundred two million, one hundred twenty-three thousand, twelve".