1213311445432 has 32 divisors (see below), whose sum is σ = 2535557979600. Its totient is φ = 540919033344.

The previous prime is 1213311445427. The next prime is 1213311445441. The reversal of 1213311445432 is 2345441133121.

It is a super-2 number, since 2×1213311445432² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234771303 + ... + 234776470.

Almost surely, 2^{1213311445432} is an apocalyptic number.

It is an amenable number.

1213311445432 is an abundant number, since it is smaller than the sum of its proper divisors (1322246534168).

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

1213311445432 is a wasteful number, since it uses less digits than its factorization.

1213311445432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469547815 (or 469547811 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

Adding to 1213311445432 its reverse (2345441133121), we get a palindrome (3558752578553).

The spelling of 1213311445432 in words is "one trillion, two hundred thirteen billion, three hundred eleven million, four hundred forty-five thousand, four hundred thirty-two".