1200641125503 has 8 divisors (see below), whose sum is σ = 1695022765488. Its totient is φ = 753343451264.

The previous prime is 1200641125471. The next prime is 1200641125517. The reversal of 1200641125503 is 3055211460021.

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 1200641125503 - 2⁵ = 1200641125471 is a prime.

It is a super-2 number, since 2×1200641125503² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200641123503) 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, 11770991376 + ... + 11770991477.

It is an arithmetic number, because the mean of its divisors is an integer number (211877845686).

Almost surely, 2^{1200641125503} is an apocalyptic number.

1200641125503 is a deficient number, since it is larger than the sum of its proper divisors (494381639985).

1200641125503 is a wasteful number, since it uses less digits than its factorization.

1200641125503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23541982873.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1200641125503 its reverse (3055211460021), we get a palindrome (4255852585524).

The spelling of 1200641125503 in words is "one trillion, two hundred billion, six hundred forty-one million, one hundred twenty-five thousand, five hundred three".