10521234351403 has 2 divisors, whose sum is σ = 10521234351404. Its totient is φ = 10521234351402.

The previous prime is 10521234351379. The next prime is 10521234351449. The reversal of 10521234351403 is 30415343212501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10521234351403 - 2¹³ = 10521234343211 is a prime.

It is a super-2 number, since 2×10521234351403² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10521234351473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260617175701 + 5260617175702.

It is an arithmetic number, because the mean of its divisors is an integer number (5260617175702).

Almost surely, 2^{10521234351403} is an apocalyptic number.

10521234351403 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521234351403 is an equidigital number, since it uses as much as digits as its factorization.

10521234351403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 10521234351403 its reverse (30415343212501), we get a palindrome (40936577563904).

The spelling of 10521234351403 in words is "ten trillion, five hundred twenty-one billion, two hundred thirty-four million, three hundred fifty-one thousand, four hundred three".