1350723401531 has 16 divisors (see below), whose sum is σ = 1565809072128. Its totient is φ = 1141177010400.

The previous prime is 1350723401507. The next prime is 1350723401539. The reversal of 1350723401531 is 1351043270531.

It is not a de Polignac number, because 1350723401531 - 2¹⁸ = 1350723139387 is a prime.

It is a super-2 number, since 2×1350723401531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1350723401491 and 1350723401500.

It is not an unprimeable number, because it can be changed into a prime (1350723401539) 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, 1712621 + ... + 2373713.

It is an arithmetic number, because the mean of its divisors is an integer number (97863067008).

Almost surely, 2^{1350723401531} is an apocalyptic number.

1350723401531 is a deficient number, since it is larger than the sum of its proper divisors (215085670597).

1350723401531 is an equidigital number, since it uses as much as digits as its factorization.

1350723401531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665282.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 1350723401531 in words is "one trillion, three hundred fifty billion, seven hundred twenty-three million, four hundred one thousand, five hundred thirty-one".