1451331131261 has 8 divisors (see below), whose sum is σ = 1598946270048. Its totient is φ = 1306328650000.

The previous prime is 1451331131231. The next prime is 1451331131287. The reversal of 1451331131261 is 1621311331541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1451331131261 - 2³⁰ = 1450257389437 is a prime.

It is a super-2 number, since 2×1451331131261² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451331131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653163215 + ... + 653165436.

It is an arithmetic number, because the mean of its divisors is an integer number (199868283756).

Almost surely, 2^{1451331131261} is an apocalyptic number.

1451331131261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1451331131261 is a deficient number, since it is larger than the sum of its proper divisors (147615138787).

1451331131261 is a wasteful number, since it uses less digits than its factorization.

1451331131261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306328763.

The product of its digits is 6480, while the sum is 32.

The spelling of 1451331131261 in words is "one trillion, four hundred fifty-one billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred sixty-one".