1303121133123 has 32 divisors (see below), whose sum is σ = 1831563316800. Its totient is φ = 822855860736.

The previous prime is 1303121133109. The next prime is 1303121133131. The reversal of 1303121133123 is 3213311213031.

It is not a de Polignac number, because 1303121133123 - 2⁶ = 1303121133059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303121133093 and 1303121133102.

It is not an unprimeable number, because it can be changed into a prime (1303121133103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48849433 + ... + 48876101.

It is an arithmetic number, because the mean of its divisors is an integer number (57236353650).

Almost surely, 2^{1303121133123} is an apocalyptic number.

1303121133123 is a deficient number, since it is larger than the sum of its proper divisors (528442183677).

1303121133123 is a wasteful number, since it uses less digits than its factorization.

1303121133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37351.

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

Adding to 1303121133123 its reverse (3213311213031), we get a palindrome (4516432346154).

The spelling of 1303121133123 in words is "one trillion, three hundred three billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred twenty-three".