1342121331 has 16 divisors (see below), whose sum is σ = 1841545728. Its totient is φ = 869013600.

The previous prime is 1342121317. The next prime is 1342121351. The reversal of 1342121331 is 1331212431.

It is not a de Polignac number, because 1342121331 - 2¹³ = 1342113139 is a prime.

It is a super-2 number, since 2×1342121331² = 3602579334250423122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1342121298 and 1342121307.

It is not an unprimeable number, because it can be changed into a prime (1342121351) 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, 17860 + ... + 54801.

It is an arithmetic number, because the mean of its divisors is an integer number (115096608).

Almost surely, 2^1342121331 is an apocalyptic number.

1342121331 is a deficient number, since it is larger than the sum of its proper divisors (499424397).

1342121331 is a wasteful number, since it uses less digits than its factorization.

1342121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72842.

The product of its digits is 432, while the sum is 21.

The square root of 1342121331 is about 36634.9741503935. The cubic root of 1342121331 is about 1103.0552338247.

Adding to 1342121331 its reverse (1331212431), we get a palindrome (2673333762).

The spelling of 1342121331 in words is "one billion, three hundred forty-two million, one hundred twenty-one thousand, three hundred thirty-one".