1203111301123 has 8 divisors (see below), whose sum is σ = 1231287598800. Its totient is φ = 1175260741248.

The previous prime is 1203111301109. The next prime is 1203111301201. The reversal of 1203111301123 is 3211031113021.

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 1203111301123 - 2³³ = 1194521366531 is a prime.

It is a super-2 number, since 2×1203111301123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203111301123.

It is not an unprimeable number, because it can be changed into a prime (1203111301523) 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, 81426978 + ... + 81441751.

It is an arithmetic number, because the mean of its divisors is an integer number (153910949850).

Almost surely, 2^{1203111301123} is an apocalyptic number.

1203111301123 is a deficient number, since it is larger than the sum of its proper divisors (28176297677).

1203111301123 is an equidigital number, since it uses as much as digits as its factorization.

1203111301123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162868901.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1203111301123 its reverse (3211031113021), we get a palindrome (4414142414144).

The spelling of 1203111301123 in words is "one trillion, two hundred three billion, one hundred eleven million, three hundred one thousand, one hundred twenty-three".