1101012312 has 32 divisors (see below), whose sum is σ = 2779789680. Its totient is φ = 363369600.

The previous prime is 1101012299. The next prime is 1101012317. The reversal of 1101012312 is 2132101011.

It is a super-2 number, since 2×1101012312² = 2424456222351170688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224683 + ... + 229530.

Almost surely, 2^1101012312 is an apocalyptic number.

1101012312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101012312 is an abundant number, since it is smaller than the sum of its proper divisors (1678777368).

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

1101012312 is a wasteful number, since it uses less digits than its factorization.

1101012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454323 (or 454319 counting only the distinct ones).

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

The square root of 1101012312 is about 33181.5055716283. The cubic root of 1101012312 is about 1032.5966818654.

Adding to 1101012312 its reverse (2132101011), we get a palindrome (3233113323).

The spelling of 1101012312 in words is "one billion, one hundred one million, twelve thousand, three hundred twelve".