1210121432 has 32 divisors (see below), whose sum is σ = 2445678480. Its totient is φ = 558023040.

The previous prime is 1210121401. The next prime is 1210121459. The reversal of 1210121432 is 2341210121.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 1210121432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129758 + ... + 138770.

Almost surely, 2^1210121432 is an apocalyptic number.

It is an amenable number.

1210121432 is an abundant number, since it is smaller than the sum of its proper divisors (1235557048).

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

1210121432 is a wasteful number, since it uses less digits than its factorization.

1210121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10323 (or 10319 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1210121432 is about 34786.7996803385. The cubic root of 1210121432 is about 1065.6378824642.

Adding to 1210121432 its reverse (2341210121), we get a palindrome (3551331553).

It can be divided in two parts, 12101 and 21432, that added together give a palindrome (33533).

The spelling of 1210121432 in words is "one billion, two hundred ten million, one hundred twenty-one thousand, four hundred thirty-two".