203450611053420 has 36 divisors (see below), whose sum is σ = 617133520195920. Its totient is φ = 54253496280864.

The previous prime is 203450611053409. The next prime is 203450611053427. The reversal of 203450611053420 is 24350116054302.

203450611053420 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 5 + 0 + 6 + 110 + 534 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×203450611053420² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (203450611053427) 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 in 11 ways as a sum of consecutive naturals, for example, 565140586080 + ... + 565140586439.

It is an arithmetic number, because the mean of its divisors is an integer number (17142597783220).

Almost surely, 2^{203450611053420} is an apocalyptic number.

203450611053420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203450611053420 is an abundant number, since it is smaller than the sum of its proper divisors (413682909142500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203450611053420 is a wasteful number, since it uses less digits than its factorization.

203450611053420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130281172534 (or 1130281172529 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 203450611053420 in words is "two hundred three trillion, four hundred fifty billion, six hundred eleven million, fifty-three thousand, four hundred twenty".