1203121331412 has 96 divisors (see below), whose sum is σ = 3769219313664. Its totient is φ = 288460656000.

The previous prime is 1203121331411. The next prime is 1203121331429. The reversal of 1203121331412 is 2141331213021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203121331411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50067964 + ... + 50091987.

It is an arithmetic number, because the mean of its divisors is an integer number (39262701184).

Almost surely, 2^{1203121331412} is an apocalyptic number.

1203121331412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203121331412 is an abundant number, since it is smaller than the sum of its proper divisors (2566097982252).

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

1203121331412 is a wasteful number, since it uses less digits than its factorization.

1203121331412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100159989 (or 100159987 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1203121331412 its reverse (2141331213021), we get a palindrome (3344452544433).

The spelling of 1203121331412 in words is "one trillion, two hundred three billion, one hundred twenty-one million, three hundred thirty-one thousand, four hundred twelve".