10203621123430 has 32 divisors (see below), whose sum is σ = 20991366031680. Its totient is φ = 3498207765120.

The previous prime is 10203621123419. The next prime is 10203621123439. The reversal of 10203621123430 is 3432112630201.

It is a happy number.

It is a super-2 number, since 2×10203621123430² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203621123439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2279385 + ... + 5059924.

It is an arithmetic number, because the mean of its divisors is an integer number (655980188490).

Almost surely, 2^{10203621123430} is an apocalyptic number.

10203621123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10203621123430 is an abundant number, since it is smaller than the sum of its proper divisors (10787744908250).

10203621123430 is a wasteful number, since it uses less digits than its factorization.

10203621123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359184.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 10203621123430 its reverse (3432112630201), we get a palindrome (13635733753631).

The spelling of 10203621123430 in words is "ten trillion, two hundred three billion, six hundred twenty-one million, one hundred twenty-three thousand, four hundred thirty".