1201113012003 has 8 divisors (see below), whose sum is σ = 1601570642688. Its totient is φ = 800698694664.

The previous prime is 1201113011993. The next prime is 1201113012007. The reversal of 1201113012003 is 3002103111021.

It is a happy number.

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

It is not a de Polignac number, because 1201113012003 - 2⁵ = 1201113011971 is a prime.

It is a super-4 number, since 4×1201113012003⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201113012007) 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, 10763575 + ... + 10874592.

It is an arithmetic number, because the mean of its divisors is an integer number (200196330336).

Almost surely, 2^{1201113012003} is an apocalyptic number.

1201113012003 is a deficient number, since it is larger than the sum of its proper divisors (400457630685).

1201113012003 is a wasteful number, since it uses less digits than its factorization.

1201113012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21656673.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1201113012003 its reverse (3002103111021), we get a palindrome (4203216123024).

The spelling of 1201113012003 in words is "one trillion, two hundred one billion, one hundred thirteen million, twelve thousand, three".