1133020123 has 4 divisors (see below), whose sum is σ = 1133098648. Its totient is φ = 1132941600.

The previous prime is 1133020099. The next prime is 1133020153. The reversal of 1133020123 is 3210203311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1133020123 - 2¹³ = 1133011931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133020097 and 1133020106.

It is not an unprimeable number, because it can be changed into a prime (1133020153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10686 + ... + 48787.

It is an arithmetic number, because the mean of its divisors is an integer number (283274662).

Almost surely, 2^1133020123 is an apocalyptic number.

1133020123 is a deficient number, since it is larger than the sum of its proper divisors (78525).

1133020123 is an equidigital number, since it uses as much as digits as its factorization.

1133020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78524.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1133020123 is about 33660.3642731329. The cubic root of 1133020123 is about 1042.5075472504.

Adding to 1133020123 its reverse (3210203311), we get a palindrome (4343223434).

The spelling of 1133020123 in words is "one billion, one hundred thirty-three million, twenty thousand, one hundred twenty-three".