1240551315031 has 16 divisors (see below), whose sum is σ = 1484756135424. Its totient is φ = 1013426102304.

The previous prime is 1240551315013. The next prime is 1240551315127. The reversal of 1240551315031 is 1305131550421.

It is not a de Polignac number, because 1240551315031 - 2²¹ = 1240549217879 is a prime.

It is a super-2 number, since 2×1240551315031² (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 = 1240551314984 and 1240551315002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240551315331) 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, 13863865 + ... + 13953058.

It is an arithmetic number, because the mean of its divisors is an integer number (92797258464).

Almost surely, 2^{1240551315031} is an apocalyptic number.

1240551315031 is a deficient number, since it is larger than the sum of its proper divisors (244204820393).

1240551315031 is a wasteful number, since it uses less digits than its factorization.

1240551315031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27817230.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 1240551315031 its reverse (1305131550421), we get a palindrome (2545682865452).

The spelling of 1240551315031 in words is "one trillion, two hundred forty billion, five hundred fifty-one million, three hundred fifteen thousand, thirty-one".