203111000000402 has 16 divisors (see below), whose sum is σ = 328959048821760. Its totient is φ = 93498777260112.

The previous prime is 203111000000383. The next prime is 203111000000413. The reversal of 203111000000402 is 204000000111302.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10198373252 + ... + 10198393167.

It is an arithmetic number, because the mean of its divisors is an integer number (20559940551360).

Almost surely, 2^{203111000000402} is an apocalyptic number.

203111000000402 is a deficient number, since it is larger than the sum of its proper divisors (125848048821358).

203111000000402 is a wasteful number, since it uses less digits than its factorization.

203111000000402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20396766817.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 203111000000402 its reverse (204000000111302), we get a palindrome (407111000111704).

The spelling of 203111000000402 in words is "two hundred three trillion, one hundred eleven billion, four hundred two", and thus it is an aban number.