1373155531353 has 12 divisors (see below), whose sum is σ = 1983886433620. Its totient is φ = 915234149376.

The previous prime is 1373155531333. The next prime is 1373155531369. The reversal of 1373155531353 is 3531355513731.

1373155531353 is a `hidden beast` number, since 1 + 3 + 7 + 31 + 5 + 553 + 13 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 362943592704 + 1010211938649 = 602448^2 + 1005093^2 .

It is not a de Polignac number, because 1373155531353 - 2²² = 1373151337049 is a prime.

It is a super-2 number, since 2×1373155531353² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1373155531299 and 1373155531308.

It is not an unprimeable number, because it can be changed into a prime (1373155531313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16863088 + ... + 16944321.

Almost surely, 2^{1373155531353} is an apocalyptic number.

It is an amenable number.

1373155531353 is a deficient number, since it is larger than the sum of its proper divisors (610730902267).

1373155531353 is a wasteful number, since it uses less digits than its factorization.

1373155531353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33811928 (or 33811925 counting only the distinct ones).

The product of its digits is 1063125, while the sum is 45.

The spelling of 1373155531353 in words is "one trillion, three hundred seventy-three billion, one hundred fifty-five million, five hundred thirty-one thousand, three hundred fifty-three".