203453455425454 has 32 divisors (see below), whose sum is σ = 330331261651776. Its totient is φ = 93422850447360.

The previous prime is 203453455425419. The next prime is 203453455425463. The reversal of 203453455425454 is 454524554354302.

It is a super-2 number, since 2×203453455425454² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203453455425395 and 203453455425404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241835319 + ... + 242675149.

It is an arithmetic number, because the mean of its divisors is an integer number (10322851926618).

Almost surely, 2^{203453455425454} is an apocalyptic number.

203453455425454 is a deficient number, since it is larger than the sum of its proper divisors (126877806226322).

203453455425454 is a wasteful number, since it uses less digits than its factorization.

203453455425454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887340.

The product of its (nonzero) digits is 115200000, while the sum is 55.

The spelling of 203453455425454 in words is "two hundred three trillion, four hundred fifty-three billion, four hundred fifty-five million, four hundred twenty-five thousand, four hundred fifty-four".