10121223430 has 24 divisors (see below), whose sum is σ = 19227527712. Its totient is φ = 3835409616.

The previous prime is 10121223421. The next prime is 10121223461. The reversal of 10121223430 is 3432212101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 10121223398 and 10121223407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1398222 + ... + 1405441.

It is an arithmetic number, because the mean of its divisors is an integer number (801146988).

Almost surely, 2^10121223430 is an apocalyptic number.

10121223430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121223430 is a deficient number, since it is larger than the sum of its proper divisors (9106304282).

10121223430 is a wasteful number, since it uses less digits than its factorization.

10121223430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803708 (or 2803689 counting only the distinct ones).

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

Adding to 10121223430 its reverse (3432212101), we get a palindrome (13553435531).

The spelling of 10121223430 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred thirty".