1203123133131 has 8 divisors (see below), whose sum is σ = 1604208491520. Its totient is φ = 802059931752.

The previous prime is 1203123133127. The next prime is 1203123133229. The reversal of 1203123133131 is 1313313213021.

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

It is not a de Polignac number, because 1203123133131 - 2² = 1203123133127 is a prime.

It is a super-2 number, since 2×1203123133131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1203123133631) 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, 5412135 + ... + 5630048.

It is an arithmetic number, because the mean of its divisors is an integer number (200526061440).

Almost surely, 2^{1203123133131} is an apocalyptic number.

1203123133131 is a deficient number, since it is larger than the sum of its proper divisors (401085358389).

1203123133131 is a wasteful number, since it uses less digits than its factorization.

1203123133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11078505.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1203123133131 its reverse (1313313213021), we get a palindrome (2516436346152).

The spelling of 1203123133131 in words is "one trillion, two hundred three billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty-one".