601138900123 has 2 divisors, whose sum is σ = 601138900124. Its totient is φ = 601138900122.

The previous prime is 601138900121. The next prime is 601138900127. The reversal of 601138900123 is 321009831106.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 601138900123 - 2¹ = 601138900121 is a prime.

It is a super-2 number, since 2×601138900123² (a number of 24 digits) contains 22 as substring.

Together with 601138900121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (601138900121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300569450061 + 300569450062.

It is an arithmetic number, because the mean of its divisors is an integer number (300569450062).

Almost surely, 2^601138900123 is an apocalyptic number.

601138900123 is a deficient number, since it is larger than the sum of its proper divisors (1).

601138900123 is an equidigital number, since it uses as much as digits as its factorization.

601138900123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 601138900123 in words is "six hundred one billion, one hundred thirty-eight million, nine hundred thousand, one hundred twenty-three".