1231453344312 has 24 divisors (see below), whose sum is σ = 3335186141040. Its totient is φ = 410484448080.

The previous prime is 1231453344301. The next prime is 1231453344337. The reversal of 1231453344312 is 2134433541321.

1231453344312 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 4 + 5 + 334 + 4 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8551759264 + ... + 8551759407.

It is an arithmetic number, because the mean of its divisors is an integer number (138966089210).

Almost surely, 2^{1231453344312} is an apocalyptic number.

1231453344312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231453344312 is an abundant number, since it is smaller than the sum of its proper divisors (2103732796728).

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

1231453344312 is a wasteful number, since it uses less digits than its factorization.

1231453344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17103518683 (or 17103518676 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 1231453344312 its reverse (2134433541321), we get a palindrome (3365886885633).

The spelling of 1231453344312 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-three million, three hundred forty-four thousand, three hundred twelve".