1023121123 has 8 divisors (see below), whose sum is σ = 1026596880. Its totient is φ = 1019652480.

The previous prime is 1023121111. The next prime is 1023121153. The reversal of 1023121123 is 3211213201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023121123 is a prime.

It is a super-2 number, since 2×1023121123² = 2093553664657562258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023121097 and 1023121106.

It is not an unprimeable number, because it can be changed into a prime (1023121103) 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, 468448 + ... + 470626.

It is an arithmetic number, because the mean of its divisors is an integer number (128324610).

Almost surely, 2^1023121123 is an apocalyptic number.

1023121123 is a deficient number, since it is larger than the sum of its proper divisors (3475757).

1023121123 is an equidigital number, since it uses as much as digits as its factorization.

1023121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1023121123 is about 31986.2645990431. The cubic root of 1023121123 is about 1007.6483939319.

Adding to 1023121123 its reverse (3211213201), we get a palindrome (4234334324).

The spelling of 1023121123 in words is "one billion, twenty-three million, one hundred twenty-one thousand, one hundred twenty-three".