233121000977 has 2 divisors, whose sum is σ = 233121000978. Its totient is φ = 233121000976.

The previous prime is 233121000953. The next prime is 233121001027. The reversal of 233121000977 is 779000121332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134971003456 + 98149997521 = 367384^2 + 313289^2 .

It is a cyclic number.

It is not a de Polignac number, because 233121000977 - 2⁶ = 233121000913 is a prime.

It is not a weakly prime, because it can be changed into another prime (233121000947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116560500488 + 116560500489.

It is an arithmetic number, because the mean of its divisors is an integer number (116560500489).

Almost surely, 2^233121000977 is an apocalyptic number.

It is an amenable number.

233121000977 is a deficient number, since it is larger than the sum of its proper divisors (1).

233121000977 is an equidigital number, since it uses as much as digits as its factorization.

233121000977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The spelling of 233121000977 in words is "two hundred thirty-three billion, one hundred twenty-one million, nine hundred seventy-seven", and thus it is an aban number.