122040004357 has 2 divisors, whose sum is σ = 122040004358. Its totient is φ = 122040004356.

The previous prime is 122040004351. The next prime is 122040004367. The reversal of 122040004357 is 753400040221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74927565441 + 47112438916 = 273729^2 + 217054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122040004357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122040004351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61020002178 + 61020002179.

It is an arithmetic number, because the mean of its divisors is an integer number (61020002179).

Almost surely, 2^122040004357 is an apocalyptic number.

It is an amenable number.

122040004357 is a deficient number, since it is larger than the sum of its proper divisors (1).

122040004357 is an equidigital number, since it uses as much as digits as its factorization.

122040004357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 122040004357 its reverse (753400040221), we get a palindrome (875440044578).

The spelling of 122040004357 in words is "one hundred twenty-two billion, forty million, four thousand, three hundred fifty-seven".