61009132001 has 2 divisors, whose sum is σ = 61009132002. Its totient is φ = 61009132000.

The previous prime is 61009131923. The next prime is 61009132043. The reversal of 61009132001 is 10023190016.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53881551376 + 7127580625 = 232124^2 + 84425^2 .

It is a cyclic number.

It is not a de Polignac number, because 61009132001 - 2³⁴ = 43829262817 is a prime.

It is a super-2 number, since 2×61009132001² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61009132061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30504566000 + 30504566001.

It is an arithmetic number, because the mean of its divisors is an integer number (30504566001).

Almost surely, 2^61009132001 is an apocalyptic number.

It is an amenable number.

61009132001 is a deficient number, since it is larger than the sum of its proper divisors (1).

61009132001 is an equidigital number, since it uses as much as digits as its factorization.

61009132001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 61009132001 in words is "sixty-one billion, nine million, one hundred thirty-two thousand, one".