203431453112 has 64 divisors (see below), whose sum is σ = 390686535360. Its totient is φ = 99269913600.

The previous prime is 203431453091. The next prime is 203431453223. The reversal of 203431453112 is 211354134302.

It is a super-2 number, since 2×203431453112² (a number of 23 digits) contains 22 as substring.

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, 147306662 + ... + 147308042.

It is an arithmetic number, because the mean of its divisors is an integer number (6104477115).

Almost surely, 2^203431453112 is an apocalyptic number.

It is an amenable number.

203431453112 is a deficient number, since it is larger than the sum of its proper divisors (187255082248).

203431453112 is a wasteful number, since it uses less digits than its factorization.

203431453112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 3020 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 203431453112 its reverse (211354134302), we get a palindrome (414785587414).

The spelling of 203431453112 in words is "two hundred three billion, four hundred thirty-one million, four hundred fifty-three thousand, one hundred twelve".