1361212532151 has 4 divisors (see below), whose sum is σ = 1814950042872. Its totient is φ = 907475021432.

The previous prime is 1361212532149. The next prime is 1361212532153. The reversal of 1361212532151 is 1512352121631.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1361212532149) and next prime (1361212532153).

It is a cyclic number.

It is not a de Polignac number, because 1361212532151 - 2¹ = 1361212532149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361212532153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226868755356 + ... + 226868755361.

It is an arithmetic number, because the mean of its divisors is an integer number (453737510718).

Almost surely, 2^{1361212532151} is an apocalyptic number.

1361212532151 is a deficient number, since it is larger than the sum of its proper divisors (453737510721).

1361212532151 is an equidigital number, since it uses as much as digits as its factorization.

1361212532151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453737510720.

The product of its digits is 10800, while the sum is 33.

Adding to 1361212532151 its reverse (1512352121631), we get a palindrome (2873564653782).

The spelling of 1361212532151 in words is "one trillion, three hundred sixty-one billion, two hundred twelve million, five hundred thirty-two thousand, one hundred fifty-one".