231435011051 has 2 divisors, whose sum is σ = 231435011052. Its totient is φ = 231435011050.

The previous prime is 231435011039. The next prime is 231435011201. The reversal of 231435011051 is 150110534132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231435011051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231435011051.

It is not a weakly prime, because it can be changed into another prime (231435011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115717505525 + 115717505526.

It is an arithmetic number, because the mean of its divisors is an integer number (115717505526).

Almost surely, 2^231435011051 is an apocalyptic number.

231435011051 is a deficient number, since it is larger than the sum of its proper divisors (1).

231435011051 is an equidigital number, since it uses as much as digits as its factorization.

231435011051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 231435011051 its reverse (150110534132), we get a palindrome (381545545183).

The spelling of 231435011051 in words is "two hundred thirty-one billion, four hundred thirty-five million, eleven thousand, fifty-one".