1351633172323 has 32 divisors (see below), whose sum is σ = 1681986521600. Its totient is φ = 1060219528704.

The previous prime is 1351633172293. The next prime is 1351633172369. The reversal of 1351633172323 is 3232713361531.

It is a de Polignac number, because none of the positive numbers 2^k-1351633172323 is a prime.

It is a super-2 number, since 2×1351633172323² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1351633176323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303990 + ... + 1672027.

It is an arithmetic number, because the mean of its divisors is an integer number (52562078800).

Almost surely, 2^{1351633172323} is an apocalyptic number.

1351633172323 is a deficient number, since it is larger than the sum of its proper divisors (330353349277).

1351633172323 is a wasteful number, since it uses less digits than its factorization.

1351633172323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976219.

The product of its digits is 204120, while the sum is 40.

The spelling of 1351633172323 in words is "one trillion, three hundred fifty-one billion, six hundred thirty-three million, one hundred seventy-two thousand, three hundred twenty-three".