1213034112 has 48 divisors (see below), whose sum is σ = 3490635330. Its totient is φ = 404344320.

The previous prime is 1213034107. The next prime is 1213034117. The reversal of 1213034112 is 2114303121.

It is an interprime number because it is at equal distance from previous prime (1213034107) and next prime (1213034117).

It can be written as a sum of positive squares in only one way, i.e., 1063803456 + 149230656 = 32616^2 + 12216^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1213034117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525339 + ... + 527642.

Almost surely, 2^1213034112 is an apocalyptic number.

1213034112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213034112 is an abundant number, since it is smaller than the sum of its proper divisors (2277601218).

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

1213034112 is a wasteful number, since it uses less digits than its factorization.

1213034112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053001 (or 1052986 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1213034112 is about 34828.6392499047. The cubic root of 1213034112 is about 1066.4921700667.

Adding to 1213034112 its reverse (2114303121), we get a palindrome (3327337233).

The spelling of 1213034112 in words is "one billion, two hundred thirteen million, thirty-four thousand, one hundred twelve".