1202000311381 has 2 divisors, whose sum is σ = 1202000311382. Its totient is φ = 1202000311380.

The previous prime is 1202000311261. The next prime is 1202000311399. The reversal of 1202000311381 is 1831130002021.

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., 981950192356 + 220050119025 = 990934^2 + 469095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202000311381 - 2¹⁵ = 1202000278613 is a prime.

It is a super-2 number, since 2×1202000311381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202007311381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601000155690 + 601000155691.

It is an arithmetic number, because the mean of its divisors is an integer number (601000155691).

Almost surely, 2^{1202000311381} is an apocalyptic number.

It is an amenable number.

1202000311381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202000311381 is an equidigital number, since it uses as much as digits as its factorization.

1202000311381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1202000311381 in words is "one trillion, two hundred two billion, three hundred eleven thousand, three hundred eighty-one".