1023232012381 has 2 divisors, whose sum is σ = 1023232012382. Its totient is φ = 1023232012380.

The previous prime is 1023232012247. The next prime is 1023232012403. The reversal of 1023232012381 is 1832102323201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 951533917156 + 71698095225 = 975466^2 + 267765^2 .

It is an emirp because it is prime and its reverse (1832102323201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023232012381 - 2³⁹ = 473476198493 is a prime.

It is a super-2 number, since 2×1023232012381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023232312381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511616006190 + 511616006191.

It is an arithmetic number, because the mean of its divisors is an integer number (511616006191).

Almost surely, 2^{1023232012381} is an apocalyptic number.

It is an amenable number.

1023232012381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023232012381 is an equidigital number, since it uses as much as digits as its factorization.

1023232012381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1023232012381 its reverse (1832102323201), we get a palindrome (2855334335582).

The spelling of 1023232012381 in words is "one trillion, twenty-three billion, two hundred thirty-two million, twelve thousand, three hundred eighty-one".