1315243022451 has 16 divisors (see below), whose sum is σ = 1835000593920. Its totient is φ = 836369452160.

The previous prime is 1315243022413. The next prime is 1315243022461. The reversal of 1315243022451 is 1542203425131.

It is a cyclic number.

It is not a de Polignac number, because 1315243022451 - 2⁷ = 1315243022323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315243022461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26523270 + ... + 26572811.

It is an arithmetic number, because the mean of its divisors is an integer number (114687537120).

Almost surely, 2^{1315243022451} is an apocalyptic number.

1315243022451 is a deficient number, since it is larger than the sum of its proper divisors (519757571469).

1315243022451 is a wasteful number, since it uses less digits than its factorization.

1315243022451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53096466.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1315243022451 its reverse (1542203425131), we get a palindrome (2857446447582).

The spelling of 1315243022451 in words is "one trillion, three hundred fifteen billion, two hundred forty-three million, twenty-two thousand, four hundred fifty-one".