1011233123 has 2 divisors, whose sum is σ = 1011233124. Its totient is φ = 1011233122.

The previous prime is 1011233081. The next prime is 1011233137. The reversal of 1011233123 is 3213321101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011233123 - 2¹² = 1011229027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1011233023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505616561 + 505616562.

It is an arithmetic number, because the mean of its divisors is an integer number (505616562).

Almost surely, 2^1011233123 is an apocalyptic number.

1011233123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011233123 is an equidigital number, since it uses as much as digits as its factorization.

1011233123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1011233123 is about 31799.8918708853. The cubic root of 1011233123 is about 1003.7304408400.

Adding to 1011233123 its reverse (3213321101), we get a palindrome (4224554224).

The spelling of 1011233123 in words is "one billion, eleven million, two hundred thirty-three thousand, one hundred twenty-three".