243441099701 has 2 divisors, whose sum is σ = 243441099702. Its totient is φ = 243441099700.

The previous prime is 243441099667. The next prime is 243441099719. The reversal of 243441099701 is 107990144342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183655959601 + 59785140100 = 428551^2 + 244510^2 .

It is a cyclic number.

It is not a de Polignac number, because 243441099701 - 2⁶ = 243441099637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243441099791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121720549850 + 121720549851.

It is an arithmetic number, because the mean of its divisors is an integer number (121720549851).

Almost surely, 2^243441099701 is an apocalyptic number.

It is an amenable number.

243441099701 is a deficient number, since it is larger than the sum of its proper divisors (1).

243441099701 is an equidigital number, since it uses as much as digits as its factorization.

243441099701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 243441099701 in words is "two hundred forty-three billion, four hundred forty-one million, ninety-nine thousand, seven hundred one".