203425136421 has 8 divisors (see below), whose sum is σ = 292097631840. Its totient is φ = 125184699312.

The previous prime is 203425136407. The next prime is 203425136429. The reversal of 203425136421 is 124631524302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203425136421 - 2⁵ = 203425136389 is a prime.

It is a super-2 number, since 2×203425136421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203425136429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608014531 + ... + 2608014608.

It is an arithmetic number, because the mean of its divisors is an integer number (36512203980).

Almost surely, 2^203425136421 is an apocalyptic number.

It is an amenable number.

203425136421 is a deficient number, since it is larger than the sum of its proper divisors (88672495419).

203425136421 is a wasteful number, since it uses less digits than its factorization.

203425136421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216029155.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 203425136421 in words is "two hundred three billion, four hundred twenty-five million, one hundred thirty-six thousand, four hundred twenty-one".