1011543234403 has 8 divisors (see below), whose sum is σ = 1099930508768. Its totient is φ = 924666853824.

The previous prime is 1011543234371. The next prime is 1011543234431. The reversal of 1011543234403 is 3044323451101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011543234403 - 2⁵ = 1011543234371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011543234473) 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, 377722050 + ... + 377724727.

It is an arithmetic number, because the mean of its divisors is an integer number (137491313596).

Almost surely, 2^{1011543234403} is an apocalyptic number.

1011543234403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011543234403 is a deficient number, since it is larger than the sum of its proper divisors (88387274365).

1011543234403 is a wasteful number, since it uses less digits than its factorization.

1011543234403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755446893.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1011543234403 its reverse (3044323451101), we get a palindrome (4055866685504).

The spelling of 1011543234403 in words is "one trillion, eleven billion, five hundred forty-three million, two hundred thirty-four thousand, four hundred three".