1251422542341 has 24 divisors (see below), whose sum is σ = 1821373265400. Its totient is φ = 827939615616.

The previous prime is 1251422542309. The next prime is 1251422542373. The reversal of 1251422542341 is 1432452241521.

1251422542341 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 4 + 225 + 423 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1251422542309) and next prime (1251422542373).

It can be written as a sum of positive squares in 4 ways, for example, as 241126174116 + 1010296368225 = 491046^2 + 1005135^2 .

It is not a de Polignac number, because 1251422542341 - 2⁵ = 1251422542309 is a prime.

It is a super-3 number, since 3×1251422542341³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1251422542296 and 1251422542305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251422543341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1080171 + ... + 1915623.

It is an arithmetic number, because the mean of its divisors is an integer number (75890552725).

Almost surely, 2^{1251422542341} is an apocalyptic number.

It is an amenable number.

1251422542341 is a deficient number, since it is larger than the sum of its proper divisors (569950723059).

1251422542341 is a wasteful number, since it uses less digits than its factorization.

1251422542341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836725 (or 836722 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 1251422542341 its reverse (1432452241521), we get a palindrome (2683874783862).

The spelling of 1251422542341 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-two million, five hundred forty-two thousand, three hundred forty-one".