203150013121451 has 4 divisors (see below), whose sum is σ = 221618196132504. Its totient is φ = 184681830110400.

The previous prime is 203150013121439. The next prime is 203150013121477. The reversal of 203150013121451 is 154121310051302.

It is a happy number.

203150013121451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203150013121451 - 2⁶ = 203150013121387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203150043121451) 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, 9234091505510 + ... + 9234091505531.

It is an arithmetic number, because the mean of its divisors is an integer number (55404549033126).

Almost surely, 2^{203150013121451} is an apocalyptic number.

203150013121451 is a deficient number, since it is larger than the sum of its proper divisors (18468183011053).

203150013121451 is a wasteful number, since it uses less digits than its factorization.

203150013121451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18468183011052.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 203150013121451 its reverse (154121310051302), we get a palindrome (357271323172753).

The spelling of 203150013121451 in words is "two hundred three trillion, one hundred fifty billion, thirteen million, one hundred twenty-one thousand, four hundred fifty-one".