1351637031121 has 16 divisors (see below), whose sum is σ = 1458098783568. Its totient is φ = 1245532262400.

The previous prime is 1351637031103. The next prime is 1351637031197. The reversal of 1351637031121 is 1211307361531.

It can be written as a sum of positive squares in 8 ways, for example, as 234557144721 + 1117079886400 = 484311^2 + 1056920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351637031121 - 2¹⁷ = 1351636900049 is a prime.

It is a super-2 number, since 2×1351637031121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351637038121) 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, 26259991 + ... + 26311411.

It is an arithmetic number, because the mean of its divisors is an integer number (91131173973).

Almost surely, 2^{1351637031121} is an apocalyptic number.

It is an amenable number.

1351637031121 is a deficient number, since it is larger than the sum of its proper divisors (106461752447).

1351637031121 is a wasteful number, since it uses less digits than its factorization.

1351637031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54852.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 1351637031121 in words is "one trillion, three hundred fifty-one billion, six hundred thirty-seven million, thirty-one thousand, one hundred twenty-one".