371202027421 has 2 divisors, whose sum is σ = 371202027422. Its totient is φ = 371202027420.

The previous prime is 371202027403. The next prime is 371202027451. The reversal of 371202027421 is 124720202173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254091605625 + 117110421796 = 504075^2 + 342214^2 .

It is a cyclic number.

It is not a de Polignac number, because 371202027421 - 2²⁵ = 371168472989 is a prime.

It is a super-2 number, since 2×371202027421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371202027451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185601013710 + 185601013711.

It is an arithmetic number, because the mean of its divisors is an integer number (185601013711).

Almost surely, 2^371202027421 is an apocalyptic number.

It is an amenable number.

371202027421 is a deficient number, since it is larger than the sum of its proper divisors (1).

371202027421 is an equidigital number, since it uses as much as digits as its factorization.

371202027421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

Adding to 371202027421 its reverse (124720202173), we get a palindrome (495922229594).

The spelling of 371202027421 in words is "three hundred seventy-one billion, two hundred two million, twenty-seven thousand, four hundred twenty-one".