1203011023123 has 32 divisors (see below), whose sum is σ = 1509580800000. Its totient is φ = 933245179776.

The previous prime is 1203011023099. The next prime is 1203011023153. The reversal of 1203011023123 is 3213201103021.

It is not a de Polignac number, because 1203011023123 - 2³⁷ = 1065572069651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1203011023123.

It is not an unprimeable number, because it can be changed into a prime (1203011023153) 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, 7146478 + ... + 7312876.

It is an arithmetic number, because the mean of its divisors is an integer number (47174400000).

Almost surely, 2^{1203011023123} is an apocalyptic number.

1203011023123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1203011023123 is a deficient number, since it is larger than the sum of its proper divisors (306569776877).

1203011023123 is a wasteful number, since it uses less digits than its factorization.

1203011023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167971.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1203011023123 its reverse (3213201103021), we get a palindrome (4416212126144).

The spelling of 1203011023123 in words is "one trillion, two hundred three billion, eleven million, twenty-three thousand, one hundred twenty-three".