235143531041389 has 2 divisors, whose sum is σ = 235143531041390. Its totient is φ = 235143531041388.

The previous prime is 235143531041333. The next prime is 235143531041443. The reversal of 235143531041389 is 983140135341532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235083777683364 + 59753358025 = 15332442^2 + 244445^2 .

It is a cyclic number.

It is not a de Polignac number, because 235143531041389 - 2¹³ = 235143531033197 is a prime.

It is a super-2 number, since 2×235143531041389² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235143531042389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117571765520694 + 117571765520695.

It is an arithmetic number, because the mean of its divisors is an integer number (117571765520695).

Almost surely, 2^{235143531041389} is an apocalyptic number.

It is an amenable number.

235143531041389 is a deficient number, since it is larger than the sum of its proper divisors (1).

235143531041389 is an equidigital number, since it uses as much as digits as its factorization.

235143531041389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 235143531041389 in words is "two hundred thirty-five trillion, one hundred forty-three billion, five hundred thirty-one million, forty-one thousand, three hundred eighty-nine".