1201323029 has 2 divisors, whose sum is σ = 1201323030. Its totient is φ = 1201323028.

The previous prime is 1201323007. The next prime is 1201323043. The reversal of 1201323029 is 9203231021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992376004 + 208947025 = 31502^2 + 14455^2 .

It is an emirp because it is prime and its reverse (9203231021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201323029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201322995 and 1201323013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201023029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600661514 + 600661515.

It is an arithmetic number, because the mean of its divisors is an integer number (600661515).

Almost surely, 2^1201323029 is an apocalyptic number.

It is an amenable number.

1201323029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201323029 is an equidigital number, since it uses as much as digits as its factorization.

1201323029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1201323029 is about 34660.1071694823. The cubic root of 1201323029 is about 1063.0489613300.

The spelling of 1201323029 in words is "one billion, two hundred one million, three hundred twenty-three thousand, twenty-nine".