2121132430 has 8 divisors (see below), whose sum is σ = 3818038392. Its totient is φ = 848452968.

The previous prime is 2121132421. The next prime is 2121132439. The reversal of 2121132430 is 342311212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2121132421) and next prime (2121132439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121132398 and 2121132407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121132439) 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, 106056612 + ... + 106056631.

It is an arithmetic number, because the mean of its divisors is an integer number (477254799).

Almost surely, 2^2121132430 is an apocalyptic number.

2121132430 is a deficient number, since it is larger than the sum of its proper divisors (1696905962).

2121132430 is a wasteful number, since it uses less digits than its factorization.

2121132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212113250.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2121132430 is about 46055.7534950846. The cubic root of 2121132430 is about 1284.8603521273.

Adding to 2121132430 its reverse (342311212), we get a palindrome (2463443642).

The spelling of 2121132430 in words is "two billion, one hundred twenty-one million, one hundred thirty-two thousand, four hundred thirty".