203135605431356 has 48 divisors (see below), whose sum is σ = 405357612843456. Its totient is φ = 88238689004544.

The previous prime is 203135605431349. The next prime is 203135605431379. The reversal of 203135605431356 is 653134506531302.

It is a self number, because there is not a number n which added to its sum of digits gives 203135605431356.

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, 64376390 + ... + 67458066.

It is an arithmetic number, because the mean of its divisors is an integer number (8444950267572).

Almost surely, 2^{203135605431356} is an apocalyptic number.

203135605431356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

203135605431356 is a deficient number, since it is larger than the sum of its proper divisors (202222007412100).

203135605431356 is a wasteful number, since it uses less digits than its factorization.

203135605431356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156278 (or 3156276 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 47.

The spelling of 203135605431356 in words is "two hundred three trillion, one hundred thirty-five billion, six hundred five million, four hundred thirty-one thousand, three hundred fifty-six".