1202101129 has 2 divisors, whose sum is σ = 1202101130. Its totient is φ = 1202101128.

The previous prime is 1202101111. The next prime is 1202101151. The reversal of 1202101129 is 9211012021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134005625 + 68095504 = 33675^2 + 8252^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202101129 - 2²³ = 1193712521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202101169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601050564 + 601050565.

It is an arithmetic number, because the mean of its divisors is an integer number (601050565).

Almost surely, 2^1202101129 is an apocalyptic number.

It is an amenable number.

1202101129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202101129 is an equidigital number, since it uses as much as digits as its factorization.

1202101129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1202101129 is about 34671.3300725542. The cubic root of 1202101129 is about 1063.2784249732.

The spelling of 1202101129 in words is "one billion, two hundred two million, one hundred one thousand, one hundred twenty-nine".