1023111413 has 2 divisors, whose sum is σ = 1023111414. Its totient is φ = 1023111412.

The previous prime is 1023111409. The next prime is 1023111421. The reversal of 1023111413 is 3141113201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723717604 + 299393809 = 26902^2 + 17303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023111413 - 2² = 1023111409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023111391 and 1023111400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023111613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511555706 + 511555707.

It is an arithmetic number, because the mean of its divisors is an integer number (511555707).

Almost surely, 2^1023111413 is an apocalyptic number.

It is an amenable number.

1023111413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023111413 is an equidigital number, since it uses as much as digits as its factorization.

1023111413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1023111413 is about 31986.1128147826. The cubic root of 1023111413 is about 1007.6452062034.

Adding to 1023111413 its reverse (3141113201), we get a palindrome (4164224614).

The spelling of 1023111413 in words is "one billion, twenty-three million, one hundred eleven thousand, four hundred thirteen".