1023123401123 has 2 divisors, whose sum is σ = 1023123401124. Its totient is φ = 1023123401122.

The previous prime is 1023123401117. The next prime is 1023123401129. The reversal of 1023123401123 is 3211043213201.

It is a balanced prime because it is at equal distance from previous prime (1023123401117) and next prime (1023123401129).

It is a cyclic number.

It is not a de Polignac number, because 1023123401123 - 2²⁴ = 1023106623907 is a prime.

It is a super-2 number, since 2×1023123401123² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1023123401129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511561700561 + 511561700562.

It is an arithmetic number, because the mean of its divisors is an integer number (511561700562).

Almost surely, 2^{1023123401123} is an apocalyptic number.

1023123401123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023123401123 is an equidigital number, since it uses as much as digits as its factorization.

1023123401123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1023123401123 its reverse (3211043213201), we get a palindrome (4234166614324).

The spelling of 1023123401123 in words is "one trillion, twenty-three billion, one hundred twenty-three million, four hundred one thousand, one hundred twenty-three".