1003152421451 has 4 divisors (see below), whose sum is σ = 1003191530472. Its totient is φ = 1003113312432.

The previous prime is 1003152421423. The next prime is 1003152421517. The reversal of 1003152421451 is 1541242513001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003152421451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003152427451) 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, 19516010 + ... + 19567343.

It is an arithmetic number, because the mean of its divisors is an integer number (250797882618).

Almost surely, 2^{1003152421451} is an apocalyptic number.

1003152421451 is a deficient number, since it is larger than the sum of its proper divisors (39109021).

1003152421451 is an equidigital number, since it uses as much as digits as its factorization.

1003152421451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39109020.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1003152421451 its reverse (1541242513001), we get a palindrome (2544394934452).

The spelling of 1003152421451 in words is "one trillion, three billion, one hundred fifty-two million, four hundred twenty-one thousand, four hundred fifty-one".