1212413432 has 16 divisors (see below), whose sum is σ = 2274395760. Its totient is φ = 605907904.

The previous prime is 1212413413. The next prime is 1212413437. The reversal of 1212413432 is 2343142121.

It is a junction number, because it is equal to n+sod(n) for n = 1212413398 and 1212413407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212413437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19613 + ... + 53004.

It is an arithmetic number, because the mean of its divisors is an integer number (142149735).

Almost surely, 2^1212413432 is an apocalyptic number.

It is an amenable number.

1212413432 is a deficient number, since it is larger than the sum of its proper divisors (1061982328).

1212413432 is a wasteful number, since it uses less digits than its factorization.

1212413432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74710 (or 74706 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1212413432 is about 34819.7276267348. The cubic root of 1212413432 is about 1066.3102396804.

Adding to 1212413432 its reverse (2343142121), we get a palindrome (3555555553).

The spelling of 1212413432 in words is "one billion, two hundred twelve million, four hundred thirteen thousand, four hundred thirty-two".