103421553453 has 12 divisors (see below), whose sum is σ = 149391647808. Its totient is φ = 68945413320.

The previous prime is 103421553449. The next prime is 103421553491. The reversal of 103421553453 is 354355124301.

103421553453 is a `hidden beast` number, since 1 + 0 + 34 + 21 + 553 + 4 + 53 = 666.

It is not a de Polignac number, because 103421553453 - 2² = 103421553449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103421553553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122476 + ... + 471002.

It is an arithmetic number, because the mean of its divisors is an integer number (12449303984).

Almost surely, 2^103421553453 is an apocalyptic number.

It is an amenable number.

103421553453 is a deficient number, since it is larger than the sum of its proper divisors (45970094355).

103421553453 is a wasteful number, since it uses less digits than its factorization.

103421553453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381504 (or 381501 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 103421553453 its reverse (354355124301), we get a palindrome (457776677754).

The spelling of 103421553453 in words is "one hundred three billion, four hundred twenty-one million, five hundred fifty-three thousand, four hundred fifty-three".